# Ppt on area of trapezoids

##### Area of a Trapezoid. Find the area of each figure. 1. 2. Find each missing measure. 3. Area = 100 in 2 4. Area = 25.2 cm 2 x 10.5 h 2.3 ft 2 10.

=W2Ghl33EdOs&NR=1 http://www.youtube.com/watch?v=W2Ghl33EdOs&NR=1 Find the area of the trapezoid.  Write the trapezoid area formula.  Substitute all known values.  Add numbers in parentheses.  Multiply.  The area of the trapezoid is 28 ft 2. Find the height of the trapezoid. The trapezoid’s area is 17.5 cm 2.  Write the trapezoid area formula.  Substitute all known values.  Add numbers in parentheses.  Multiply on the right side/

##### Do Now 1. Find the area of a parallelogram with base 12 inches and height 3 inches. 2. The height of a trapezoid is 7 meters. The bases are 16 meters and.

is 132 square feet. The bases are 30 feet and 36 feet. Find the height of the trapezoid. Objective: Find the areas of trapezoids Homework: p550-551, #14-16, 18, 22-24 10.3: Areas of Trapezoids Key Terms Base of a Trapezoid: _______________________________________________ _____________________________________ Height of a Trapezoid: _______________________________________________ _____________________________________ Area of a Trapezoid A = ½(b 1 + b 2 )h b 1 & b 2 = bases h=height Example: A= Example/

##### Pre-Algebra 6-2 Perimeter and Area of Triangles and Trapezoids 6-2 Perimeter and Area of Triangles and Trapezoids Pre-Algebra Warm Up Warm Up Problem of.

and Area of Triangles and Trapezoids A triangle or trapezoid can be thought of as half of a parallelogram. Pre-Algebra 6-2 Perimeter and Area of Triangles and Trapezoids Triangle: The area A of a triangle is one-half the base length b times the height h. AREA OF A TRIANGLE WordsNumbersFormula A = (8)(4) = 16 units 2 1212 Pre-Algebra 6-2 Perimeter and Area of Triangles and Trapezoids AREA OF A TRAPEZOID WordsNumbersFormula Trapezoid: The area of a trapezoid is/

##### 1 Trapezoidal Rule of Integration. 2 What is Integration Integration: The process of measuring the area under a function plotted on a graph. Where: f(x)

integrand as an n th order polynomial… where and 4 Basis of Trapezoidal Rule Then the integral of that function is approximated by the integral of that n th order polynomial. Trapezoidal Rule assumes n=1, that is, the area under the linear polynomial, 5 Method Derived From Geometry The area under the curve is a trapezoid. The integral 6 Example 1 The vertical distance covered by a/

##### 9-2 Area of Triangles and Trapezoids Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

discs for \$5.00 or 4 discs for \$7.00? 9-2 Area of Triangles and Trapezoids You can divide any parallelogram into two congruent triangles. So the area of each triangle is half the area of the parallelogram. 9-2 Area of Triangles and Trapezoids 9-2 Area of Triangles and Trapezoids Find the area of the triangle. Additional Example 1: Finding the Area of a Triangle A = 1212 bh Write the formula. A = 1212 (20/

##### 3.6 What If Both Sides Are Parallel? Pg. 24 Properties of Trapezoids.

use what you know about finding the area of a parallelogram to find the area of the trapezoid. If the bases of each trapezoid are and and the height of each is h, then find the area of the parallelogram. Then use this area to find the area of the original trapezoid. b1b1 b2b2 A(parallelogram) = h(b 1 + b 2 ) 3.34 –AREA OF A TRAPEZOID Calculate the exact areas of the shapes below. Dont forget units. 32/

##### 5.5 The Trapezoidal Rule. I. Trapezoidal Rule A.) Area of a Trapezoid -

5.5 The Trapezoidal Rule I. Trapezoidal Rule A.) Area of a Trapezoid - B.) Approximate the area under the following curve from x = 1 to x = 4 using 6 subintervals of trapezoids. VISUALLY: TRAM: TRAM: C. Theorem: The Trapezoidal Rule To approximateusing trapezoids Where [a, b] is partitioned into n subintervals equal length D. Using the Calculator: II. Examples 1. Use 5 trapezoids to approximate the area bounded by the curve of, the x/

##### How do you find the area of a trapezoid?. In this lesson you will learn how to find the area of a trapezoid by composing a parallelogram.

you have learned how to find the area of trapezoids by composing a parallelogram. Let’s Review Guided Practice Find the area of the trapezoid. Let’s Review Extension Activities Draw a trapezoid on a piece of grid paper. Then, draw a congruent trapezoid. Connect the two trapezoids to form a parallelogram. Find the area of the parallelogram. Using the area of the parallelogram, find the area of each trapezoid. Let’s Review Extension Activities Using pattern/

##### Chapter 6 Quadrilaterals. Chapter Objectives  Define a polygon and its characteristics  Identify a regular polygon  Interior Angles of a Quadrilateral.

Chapter 6 Quadrilaterals Chapter Objectives  Define a polygon and its characteristics  Identify a regular polygon  Interior Angles of a Quadrilateral Theorem  Properties of Parallelograms  Using coordinate geometry to prove parallelograms  Compare rhombuses, rectangles, and squares  Identify trapezoids and kites  Midsegment Theorem for Trapezoids  Calculate area of trapezoids, kites, rhombuses, rectangles, and squares Lesson 6.1 Polygons Lesson 6.1 Objectives  Identify a figure to be a polygon.  /

##### Holt CA Course 1 10-4 Area of Triangles and Trapezoids AF3.1 Use variables in expressions describing geometric quantities (e.g., P = 2w + 2l, A = bh, C.

number 1 is called a subscript. It is read as “b-one” or “b sub-one.” Reading Math Holt CA Course 1 10-4 Area of Triangles and Trapezoids A. Find the area of the trapezoid. Teacher Example 2A: Finding the Area of a Trapezoid 5 in. 6 in. 9 in. A = 1212 h(b 1 + b 2 ) Use the formula. A = 1212 · 6(9 + 5) A = 1212 · 6/

##### 1 In this chapter, you have developed several different strategies for finding the areas of shapes. You have found the sums of the areas of multiple smaller.

does not ask you simply to write a formula. Be sure to… a)Sketch an example shape and show how you can find the area. b)Explain how finding the area of a trapezoid is similar to finding the areas of other types of shapes. Also, explain how it is different.. 7 Tonight’s homework is… 5.3.4 Review & Preview, problems # 101-105 Show all work/

##### Lesson 11-3 Areas of Trapezoids (page 435) Essential Question How can you calculate the area of any figure?

Areas of Trapezoids (page 435) Essential Question How can you calculate the area of any figure? Areas of Trapezoids In a trapezoid, the bases are the parallel sides. b1b1 ➤ ➤ b2b2 The altitude of a trapezoid is any segment perpendicular to the line containing one base from a point on the opposite base. b2b2 b1b1 ➤ ➤ h In a trapezoid, all altitudes have the same length, called the height (h). b2b2 b1b1 ➤ ➤ hhh The area of/

##### Adguary Calwile Laura Rogers Autrey~ 2nd Per. 3/14/11

your answer? n=4 Simpson’s Rule- Overview Simpson’s rule is the most accurate method of finding the area under a curve. It is better than the trapezoidal rule because instead of using straight lines to model the curve, it uses parabolic arches to approximate each part of the curve. The equation that is used for Simpson’s Rule ALWAYS begins with: And ends/

##### Area Formulas Rectangle What is the area formula?

, base 2. By adding them together, we get the original base from the parallelogram. The heights are the same, so no problem there. Trapezoid (b1 + b2)h 2 So we need to account for the split base, by calling the top base, base 1, and the bottom /to determine the formula. What is the area of a triangle formula again? Kite Now we have to determine the formula. What is the area of a triangle formula again? bhbh 2 Kite Now we have to determine the formula. What is the area of a triangle formula again? bhbh 2 Fill/

##### Basic Math Area Formulas

are called the legs An isosceles trapezoid is a trapezoid with congruent legs. The median of a trapezoid is the line segment that connects the midpoints of the 2 nonparallel sides of the trapezoid (the legs). b1=base 1 height Leg 1 Leg 2 median b2=base 2 h=height of the trapezoid Area of a Trapezoid A trapezoid is 4-sided figure with exactly one pair of parallel sides. The two parallel sides/

the area of the trapezoid is? The height of the parallelogram is the same as the height of the trapezoid. The base of the parallelogram is the sum of the two bases of the trapezoid. The Area of the trapezoid is found by adding base 1 and base 2 and multiplying it by ½ the height Area of a Trapezoid = 1/2h(b₁ +b₂) Try some! A section of deck is in the shape of a trapezoid, what is the area of/

##### Which of the following areas are you trying to find? ParallelogramTriangleTrapezoid AREAS OF POLYGONS.

divided the height in two. Now, rotate… Click to Continue AREA OF A TRAPEZOID ? ? rotate… AREA OF A TRAPEZOID ?? …until, you have a parallelogram. Click to Continue AREA OF A TRAPEZOID ? How would you represent the height of the parallelogram? AREA OF A TRAPEZOID ? ? ? Remember, we divided the height in two. Click to Continue AREA OF A TRAPEZOID ? How would you represent the base of the parallelogram? AREA OF A TRAPEZOID ? ? ? The new base is made by connecting the top/

##### Chapter 17 Numerical Integration Formulas. Graphical Representation of Integral Integral = area under the curve Use of a grid to approximate an integral.

Rule Better Numerical Integration  Composite integration  Multiple applications of Newton-Cotes formulae  Composite Trapezoidal Rule  Composite Simpson’s Rule  Richardson Extrapolation  Romberg integration Apply trapezoidal rule to multiple segments over integration limits Two segments Four segmentsMany segments Three segments Multiple Applications of Trapezoidal Rule Composite Trapezoidal Rule x0x0 x1x1 x f(x)f(x) x2x2 hhx3x3 hhx4x4 Trapezoidal Rule  Truncation error (single application)  Exact if/

##### Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

the ramp? Explain.?. Yes; the height is 0.8 m or 800 cm, which is greater than 750 cm. Additional Example 3: Finding the Area of a Trapezoid Find the area of the trapezoid. 1 2 A = h(b1 + b2)‏ Use the formula. A = 1 2 · 4(14 + 12 )‏ Substitute 4 for h/Check It Out: Example 3A Lisa wants to cut a hole in the shape of a trapezoid out of a piece of wood. The figure shows her plans, and each square of the grid represents 1 ft . What is the area of the remaining wood after she cuts out the hole? 2 Check It Out: /

##### Lizzy Butler Kaitlyn Smeraldo Krisitn Donadio

sum of the measures of the bases (average of bases) M= ½ (b1 + b2) Length of median can be used to find the length of the bases http://www.mathopenref.com/trapezoidmedian.html Formulas Area of Trapezoid Perimeter of Regular Trapezoid A= ½ h (b1 + b2) A= Altitude x median Originates from parallelogram (2 trapezoids, one right side up, one down) Area of Parallelogram= b x h Perimeter of Regular Trapezoid P= a + b1 + c + b2 Trapezoid Crossword/

##### 6.3 What If Both Sides Are Parallel? Pg. 13 Properties of Trapezoids.

. Be sure to label its bases and height as shown in the diagram. Then determine a formula to find the area of the original trapezoid. b1b1 b2b2 b1b1 b2b2 A(parallelogram) = h(b 1 + b 2 ) Trapezoid 6.15 –AREA OF A TRAPEZOID Calculate the exact areas of the trapezoids below. Dont forget units. 32 x 2 + 6 2 = 10 2 x 2 + 36 = 100 x 2 = 64 x = 8/

##### Mr. Miller Geometry Chapter 10 Sections 1 and 2 Area is the amount of surface space that a flat object has. Area is reported in the amount of square.

divided the height in two. Now, rotate… Click to Continue AREA OF A TRAPEZOID ? ? rotate… AREA OF A TRAPEZOID ?? …until, you have a parallelogram. Click to Continue AREA OF A TRAPEZOID ? How would you represent the height of the parallelogram? AREA OF A TRAPEZOID ? ? ? Remember, we divided the height in two. Click to Continue AREA OF A TRAPEZOID ? How would you represent the base of the parallelogram? AREA OF A TRAPEZOID ? ? ? The new base is made by connecting the top/

##### Heron Heron of Alexandria (c. 10–70 AD) was an ancient Greek mathematician and engineer. He is considered the greatest experimenter of antiquity and his.

’s a couple of triangles in there. Rhombus/Kite Area So find the area of one triangle, and then double the result. Ah, there’s a couple of triangles in there. Polygon Area Formulas Exercise 11 Find the area of the shaded region. 1. 2. 3. Trapezoids What makes a quadrilateral a trapezoid? Trapezoids trapezoid A trapezoid is a quadrilateral with exactly one pair of parallel opposite sides. Polygon Area Formulas Trapezoid Parts basesThe parallel sides/

##### Chapter 11 Areas of Plane Figures Understand what is meant by the area of a polygon. Know and use the formulas for the areas of plane figures. Work geometric.

cm Group Practice Find the area of the trapezoid 8 8 8 60º Group Practice Find the area of the trapezoid 8 8 8 60º Area = Group Practice Find the area of the trapezoid 45º 4 Group Practice Find the area of the trapezoid Area = 45º 4 Group Practice Find the area of the trapezoid 12 30 30º Group Practice Find the area of the trapezoid Area = 12 30 30º 11.4 Areas of Regular Polygons Objectives Determine the area of a regular polygon. Regular/

##### CHAPTER 4 SECTION 4.6 NUMERICAL INTEGRATION. Theorem 4.16 The Trapezoidal Rule.

the same width. Between day 1 and 4, for example, the width of the approximating trapezoid will be 3, but the next trapezoid will be 6 – 4 = 2 units wide. Therefore, you need to calculate each trapezoids area separately, knowing that the area of a trapezoid is equal to one-half of the product of the width of the trapezoid and the sum of the bases: WHY DID THEY USE THE TRAPAZOID RULE???!!!!

##### 4.6 Numerical Integration -Trapezoidal Rule -Simpson’s Rule.

cannot be used. Thus we must rely on an approximation method. Trapezoidal Method After creating a bunch of trapezoids, the area for the i th trapezoid is Which implies that Notice that the coefficients of successive terms follow the pattern of 1 2 2 2 2…2 2 1 Use the trapezoidal rule to evaluate the definite integral of f(x)=sin(x) when n=4, n=8 And/

##### 8-4 Area of Triangles and Trapezoids Learn to find the area of triangles and trapezoids.

8-4 Area of Triangles and Trapezoids Learn to find the area of triangles and trapezoids. 8-4 Area of Triangles and Trapezoids You can divide any parallelogram into two congruent triangles. So the area of each triangle is half the area of the parallelogram. 8-4 Area of Triangles and Trapezoids 8-4 Area of Triangles and Trapezoids Find the area of the triangle. Additional Example 1A: Finding the Area of a Triangle A = 1212 bh Write the formula. A = 1212 (20 · 12/

##### Lesson 2 Menu 1.Find the perimeter and area of the parallelogram. Round to the nearest tenth if necessary. 2.Find the perimeter and area of the parallelogram.

/Vocab Find areas of triangles. Find areas of trapezoids and rhombi. Lesson 2 KC1 Lesson 2 Ex1 Areas of Triangles Find the area of quadrilateral ABCD if AC = 35, BF = 18, and DE = 10. Answer: The area of ABCD is 490 square units. Substitution Simplify. Area formula The area of the quadrilateral is equal to the sum of the areas of ΔΔ Δ ΔADC Lesson 2 KC2 Lesson 2 Ex2 Area of a Trapezoid on a Coordinate Plane Find the area of trapezoid RSTU with/

##### 1 2-12-15 Polygons and Quadrilaterals Unit Trapezoids and Kites.

area. Area of trapezoid = A = ½ * 26 * (20 + 42) A = 806 Find the area of a trapezoid with bases of 10 in and 14 in, and a height of 5 in. Example 2 10 The median of a trapezoid is the segment that joins the midpoints of the legs. The median of a trapezoid is parallel to the bases, and its measure is one-half the sum of the measures of the bases. Median Median of a Trapezoid Midsegment of/

##### Geometry 11.3 Areas of Trapezoids. Trapezoids In a trapezoid, the bases are the parallel sides. An altitude of a trapezoid is defined in the same way.

Areas of Trapezoids Trapezoids In a trapezoid, the bases are the parallel sides. An altitude of a trapezoid is defined in the same way as an altitude of a parallelogram. The altitude of a trapezoid is any segment perpendicular to a line containing one base from a point on the opposite base. In a trapezoid, all altitudes have the same length, called the height, h. b1b1 b2b2 hhh Area of a Trapezoid The area of a trapezoid/ 552 552 cm² 7 Exercises Find the area of a trapezoid with 45˚ base angles and bases 17 /

##### Chapter 7 Lesson 4 Objective: To find the area of a trapezoid.

Chapter 7 Lesson 4 Objective: To find the area of a trapezoid. height of a trapezoid: height of a trapezoid: the perpendicular distance h between the bases. Base Leg h b1b1b1b1 b2b2b2b2 h b1b1b1b1 b2b2b2b2 Theorem7-10:Area of a Trapezoid Theorem7-10: Area of a Trapezoid The area of a trapezoid is half the product of the height and the sum of the bases. Example 1: Find Area of a Trapezoid Find the area of a trapezoid with height 7 cm and bases 12/

##### 11.3 The Area Of A Trapezoid Objective: After studying this section you will be able to find the areas of trapezoids and us the measure of a trapezoid’s.

11.3 The Area Of A Trapezoid Objective: After studying this section you will be able to find the areas of trapezoids and us the measure of a trapezoid’s median to find its area The Area of a Trapezoid You saw in the last lesson that we can divide a trapezoid into simpler shapes. b2b2 b1b1 h There is a formula though to make finding the area easier. TheoremThe area of a trapezoid equals one-half the/

##### 8.3 Area of Squares and Rectangles Area The amount of surface covered by a figure is its area. Area is measured in square units. –in² (inches squared)

divided the height in two. Now, rotate… Click to Continue AREA OF A TRAPEZOID ? ? rotate… AREA OF A TRAPEZOID ?? …until, you have a parallelogram. Click to Continue AREA OF A TRAPEZOID ? How would you represent the height of the parallelogram? AREA OF A TRAPEZOID ? ? ? Remember, we divided the height in two. Click to Continue AREA OF A TRAPEZOID ? How would you represent the base of the parallelogram? AREA OF A TRAPEZOID ? ? ? The new base is made by connecting the top/

##### Objective: Find the areas of trapezoids Homework: p550-551, #14-16, 18, 22-24 10.3 Areas of Trapezoids.

, #14-16, 18, 22-24 10.3 Areas of Trapezoids Key Terms Base of a Parallelogram: _______________________________________________ _____________________________________ Height of a Parallelogram: _______________________________________________ _____________________________________ Area of a Trapezoid A = ½(b 1 + b 2 )h b 1 & b 2 = bases h=height Example: A= Example 1: Finding the area of a Trapezoid The diagram shows one of the trapezoids in a quilt design. Find the area of the trapezoids. A = ½(b 1 + b 2 )h 2/

##### 5 Minute Check Find the area. Complete on the back of your homework. 1. 2. 3. 4.

“bases”. base 1 base 2 Area of Trapezoids A parallelogram is two congruent trapezoids. base 1 base 2 base 2 base 1 Area of Trapezoids Find the area of the trapezoid. Do this on your own. Area of Trapezoids Find the area of the trapezoid. With the calculator: b₁+b₂ = x h ÷ 2 = Area of Trapezoids If the area of Osceola County, Florida resembles a trapezoid. Find the approximate area of this county. Do this on your own. Area of Trapezoids Agenda Notes Complete Mid-Chapter Check/

##### Area of Trapezoids. Given the formula for the area of a parallelogram we are going to use that information to discover the formula for the area of a trapezoid.

are going to use the area of a parallelogram to find the area of a trapezoid. It takes two trapezoids to make one parallelogram. (b 1 + b 2 ) h Parallelogram Trapezoid Notice that the trapezoid is half the area of the parallelogram. How do we find half the area ? A = (b 1 + b 2 ) h Hint: Think of area of a triangle. Area of Trapezoid 2 in 6 in 3/ in A = (b 1 + b 2 ) h 4 in A = (2 + 6) 3 A = (8) 3 A = 4 3 A = 12 in² Area of Trapezoid 3 m 8 m 4 m 5 m A = (b 1 + b 2 ) h A = (3 + 8) 4 A = (11) 4 A = (44) A =/

##### Holt CA Course 1 9-2 Perimeter and Area of Triangles and Trapezoids MG2.1 Use formulas routinely for finding the perimeter and area of basic two- dimensional.

18 in. 22 in. 15 in. Subtract 55 from both sides. 55 d Holt CA Course 1 9-2 Perimeter and Area of Triangles and Trapezoids Check It Out! Example 1 58 = 49 + d d = 9 in. P = 28 + 7 + 14 +/Area of Triangles and Trapezoids A triangle or trapezoid can be thought of as half of a parallelogram. Therefore, the formulas for the area of a triangle or trapezoid have as a factor. 1212 Holt CA Course 1 9-2 Perimeter and Area of Triangles and Trapezoids Holt CA Course 1 9-2 Perimeter and Area of Triangles and Trapezoids/

##### 12/1/2015 1 Trapezoidal Rule of Integration Civil Engineering Majors Authors: Autar Kaw, Charlie Barker

.eng.usf.edu http://numericalmethods.eng.usf.edu 3 What is Integration Integration: The process of measuring the area under a function plotted on a graph. Where: f(x) is the integrand a= lower limit of integration b= upper limit of integration http://numericalmethods.eng.usf.edu4 Basis of Trapezoidal Rule Trapezoidal Rule is based on the Newton-Cotes Formula that states if one can approximate the/

##### Area of Trapezoids Tutorial 13c. Trapezoids  In a trapezoid, the parallel sides are the bases (b 1 & b 2 ). b1b1 b2b2 h leg  The nonparallel sides are.

Area of Trapezoids Tutorial 13c Trapezoids  In a trapezoid, the parallel sides are the bases (b 1 & b 2 ). b1b1 b2b2 h leg  The nonparallel sides are the legs.  The height h is the perpendicular distance between the two parallel bases. Area of a Trapezoid  The area of a trapezoid is half the product of the height and the sum of the lengths of the bases. b1b1 b2b2 h Example  Find the area of the following trapezoid: 21/

##### CSE 330 : Numerical Methods Lecture 15: Numerical Integration - Trapezoidal Rule Dr. S. M. Lutful Kabir Visiting Professor, BRAC University & Professor.

leave) IICT, BUET What is Integration? Integration: Prof. S. M. Lutful Kabir, BRAC University 2 The process of measuring the area under a function plotted on a graph. Where: f(x) is the integrand a= lower limit of integration b= upper limit of integration Basis of Trapezoidal Rule Trapezoidal Rule is based on the Newton-Cotes Formula that states if one can approximate the integrand as an/

##### Area 8.1 Rectangles & Parallelograms 8.2 Triangles, Trapezoids,& Kites.

area for a trapezoid. AREA OF A TRAPEZOID Remember, there are two different bases on a trapezoid. h AREA OF A TRAPEZOID ½ h First divide the trapezoid horizontally so the height is divided in two equal parts. ½ h AREA OF A TRAPEZOID Remember, we divided the height in two. Now, rotate… ½ h AREA OF A TRAPEZOID rotate… ½ h AREA OF A TRAPEZOID …until, you have a parallelogram. ½ h AREA OF A TRAPEZOID How would you represent the height of this parallelogram? ½ h AREA OF A TRAPEZOID/

##### 6.3 Area of a Trapezoid Mme DiMarco.  Learning Goal: use a formula to find the area of a trapezoid Learning Goal.

triangle C) 1.Find the area of each shape 2.Add the areas together to find the trapezoid area To calculate the area of a trapezoid… B > > A C Trapezoid Area = Area of Triangle A + Area of Triangle B + Area of Triangle C Method 2: use a formula A t = (b 1 + b 2 ) x h 2 To calculate the area of a trapezoid… > > b1b1 b2b2 h Use the formula to find the area of the trapezoid A t = (b 1 + b/

##### Lesson 7-7 Numerical Approximations of Integrals -- What we do when we can’t integrate a function Riemann Sums Trapezoidal Rule.

right-hand, to approximate the area under the curve (i.e., the value of the definite integral) Use the Trapezoidal Rule to approximate the area under the curve –The trapezoidal rule gives us an average of the right and left hand Riemann Sum approximations –The graph of f The trapezoidal rule will: concave down underestimate the area concave up overestimate the area. Trapezoidal Rule From Geometry: Area of a Trapezoid = ½h(b 1 + b/

##### Warm-Up 1. 2.3.. Sect. 6.5 Trapezoids and Kites Goal 1 Using Properties of Trapezoids Goal 2 Using Properties of Kites.

are not needed to compute this area. Area of trapezoid = A = ½ * 26 * (20 + 42) A = 806 Using Properties of Trapezoids Find the area of a trapezoid with bases of 10 in and 14 in, and a height of 5 in. Example 2 Using Properties of Trapezoids Midsegment of a Trapezoid – segment that connects the midpoints of the legs of the trapezoid. Using Properties of Trapezoids Theorem 6.17 Midsegment Theorem for Trapezoids The midsegment of a trapezoid is parallel to each base and/

##### 3/12/2016 1 Trapezoidal Rule of Integration Computer Engineering Majors Authors: Autar Kaw, Charlie Barker

.eng.usf.edu http://numericalmethods.eng.usf.edu 3 What is Integration Integration: The process of measuring the area under a function plotted on a graph. Where: f(x) is the integrand a= lower limit of integration b= upper limit of integration http://numericalmethods.eng.usf.edu4 Basis of Trapezoidal Rule Trapezoidal Rule is based on the Newton-Cotes Formula that states if one can approximate the/

##### 3/20/2016 1 Trapezoidal Rule of Integration Chemical Engineering Majors Authors: Autar Kaw, Charlie Barker

.eng.usf.edu http://numericalmethods.eng.usf.edu 3 What is Integration Integration: The process of measuring the area under a function plotted on a graph. Where: f(x) is the integrand a= lower limit of integration b= upper limit of integration http://numericalmethods.eng.usf.edu4 Basis of Trapezoidal Rule Trapezoidal Rule is based on the Newton-Cotes Formula that states if one can approximate the/

##### Areas of Trapezoids, Rhombi, and Kites LESSON 11–2.

triangle is 12.6 centimeters. What is the height of the triangle? Then/Now You found areas of triangles and parallelograms. Find areas of trapezoids. Find areas of rhombi and kites. Vocabulary height of a trapezoid Concept 1 Example 1 Area of a Trapezoid SHAVING Find the area of steel used to make the side of the razor blade shown below. Area of a trapezoid h = 1, b 1 = 3, b 2 = 2.5 Simplify. Answer: A = 2.75/

##### Trapezoidal Approximations Greg Kelly, Hanford High School, Richland, Washington Modified: Mike Efram Healdsburg High School 2004 Photo by Vickie Kelly,

times, we don’t even have a function, but only measurements taken from real life. What we need is an efficient method to estimate area when we can not find the antiderivative. Left-hand rectangular approximation: Approximate area: (too low) Approximate area: Right-hand rectangular approximation: (too high) Averaging right & left values of the function gives trapezoids: Trapezoidal approximation (still too high… but much better) Ex.

##### Triangles, Trapezoids & Kites

to create shape we know the area of. What is the area of one trapezoid? b1 b2 s h b2 b1 Trapezoid Area Conjecture The area of a trapezoid is given by the formula ________________, where A is the area, b1 and b2 are the lengths of the two bases, and h is the height of the trapezoid. How can I find the area of a kite? Kite Area Conjecture The area of a kite is given by the/

##### Adguary Calwile Laura Rogers Autrey~ 2nd Per. 3/14/11

to find the area under a curve: Riemann sums, the trapezoidal rule, and Simpson’s rule. For each method we must know: f(x)- the function of the curve n- the number of partitions or rectangles (a, b)- the boundaries on the x-axis between which we are finding the area Finding Area with Riemann Sums Subintervals with equal width For convenience, the area of a partition is/