10.1 Areas of Parallelograms and Triangles Area of a Rectangle – The area of a rectangle is the product of its base and height. – A = bh.

Slides:

Advertisements

Similar presentations

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals

Advertisements

Bell Work: Quinn runs a sandwich shop

8cm 5cm Area = 8 x 5 = 40cm 2 A parallelogram can be split up into a rectangle and 2 triangles – each with the same area. 10cm 5cm.

Areas of Parallelograms. Parallelogram A parallelogram is a quadrilateral where the opposite sides are congruent and parallel. A rectangle is a type of.

5.2: Areas of Triangles, Parallelograms and Trapezoids

Perimeter The perimeter of a polygon is the sum of the lengths of the sides Example 1: Find the perimeter of  ABC O A(-1,-2) B(5,-2) C(5,6) AB = 5 – (-1)

Area of a rectangle: A = bh This formula can be used for squares and parallelograms. b h.

4.6 – AREA FORMULAS. Formulas from yesterday: Perim.of a Rect.= Area of a Rect.=

Section 10-1 Area of Parallelograms &Triangles Objectives: find area of a parallelogram and triangle Area = base x height A = bh h b Area = ½ base x height.

Areas of Parallelograms and Triangles

Areas of Parallelograms, Triangles and Trapezoids

Areas of Parallelograms and Triangles Geometry Unit 4, Lesson 1.

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

Areas of Parallelograms & Triangles

Section aFind the area of a rectangle and a square. bFind the area of a parallelogram, a triangle, and a trapezoid. cSolve applied problems involving.

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals.

U6L3 Area of Triangles & Trapezoids Do Now: Write in planner Get out homework to check/grade Set up for notes Find the circumference and area:

Section 10.1 – Area: Parallelograms pages

Daily Warm-UP Quiz 1.Write the distance formula: d = ___________________ 2. Write the slope formula: 3. Given: A (-5,2) B (-3,6) Find a. The slope of AB.

Area Formulas and Parallelograms

Section 8.1.  The area of a plane figure is the measure of the region enclosed by the figure. You measure the area of a figure by counting the number.

Chapter 8 - Area.

How to Find the Area of a Parallelogram Step 1, Plan: To find the area of a parallelogram, use the formula A = bh.

7.1: Areas of Parallelograms and Triangles Objective: To find the area of a parallelogram and to find the area of a triangle.

10.4 Area of Triangles and Trapezoids. You will learn to find the areas of triangles and trapezoids. Nothing new!

10-1: Area of Parallelograms and Triangles Objectives: To find the area of parallelograms and triangles To find the area of parallelograms and triangles.

Warm Up Find the missing side length of each right triangle with legs a and b and hypotenuse c. 1. a = 7, b = c = 15, a = 9 3. b = 40, c = 41 4.

Area of Parallelograms

Lesson 11.2 Area of Parallelograms and Triangles.

10.1 Area of Parallelograms & Triangles

11-1 Areas of Parallelograms & Triangles Ms. Andrejko.

7-1 Areas of Parallelograms and Triangles M11.C G Objectives: 1) To find the area of a parallelogram and a triangle.

6.4 Properties of Rhombuses, Rectangles, and Squares A rhombus is a parallelogram with four congruent sides. A rectangle is a parallelogram with four right.

Area of Triangles and Quadrilaterals Basic equations and applying to irregular polygons.

10-1 Areas of Parallelograms and Triangles

Area of Parallelograms, Triangles, Trapezoids, Rhombuses, and Kites

Objective: To find the area of a parallelogram and a triangle.

Geometry 1.6 Perimeter and Area. Perimeter Is the distance around a figure It is the sum of the lengths of the sides of the figure =side 1 +side 2 +side.

10.3 Areas of Parallelograms

Warm-Up Find the length of the altitude in an equilateral triangle with a side length of 10 cm. Find the area of each triangle:

Week 19 day 4 6 A school increases the width of its rectangular playground from 25 meters to 40 meters and the length from 45 meters to 60 meters. By.

6.7 Area of Triangles and Quadrilaterals Area Postulates: Postulate 22 Area of a Square: The area of a square is the square of the length of its side,

How to find the area of a parallelogram and the area of a triangle. Chapter 10.1GeometryStandard/Goal 2.2.

Warm Up 3-21  What are your goals for the last nine weeks?  What habits and behaviors do you need in order to reach your goals?

Chapter 10 Area Section 10.1 Areas of Parallelograms and Triangles.

1 cm Area is the number of unit squares needed to cover a region or surface. Area.

1 Area. Vocabulary  Area—The number of square units needed to cover a surface enclosed by a geometric figure.  Base—Any side of a parallelogram or triangle.

10.1 Areas of Parallelograms and Triangles

Lesson 91 Warm Up Pg. 474.

Area of Polygons and Circles

Section 11-5: Areas of Triangles & Trapezoids

Area of Triangles and Trapezoids

Area of Triangles and Trapezoids

Copyright © Cengage Learning. All rights reserved.

10.1 Areas of Parallelograms and Triangles

Calculating the Area of a Right Triangle

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Similar Figures.

Areas of Quadrilaterals and Triangles

Corresponding Parts of Similar Triangles

Areas of Parallelograms and Triangles

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Exercise 1 2 Evaluate xy when x = 7 and y =

Parallelogram: Sides opposite are parallel

Area of Quadrilateral.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Copyright © Cengage Learning. All rights reserved.

Area of a a parallelogram

Areas of Parallelograms and Triangles

Presentation transcript:

10.1 Areas of Parallelograms and Triangles Area of a Rectangle – The area of a rectangle is the product of its base and height. – A = bh

Area of a Parallelogram The area of a parallelogram is the product of a base and the corresponding height. A = bh

Parallelograms A base of a parallelogram can be any one of its sides. The corresponding altitude is a segment perpendicular to the line containing that base, drawn from the side opposite the base. The height is the length of an altitude.

Finding the Area of a Parallelogram What is the area of each parallelogram?

Finding a Missing Dimension For parallelogram ABCD, what is DE to the nearest tenth?

Area of a Triangle The area of a triangle is half the product of a base and the corresponding height.

Finding the Area of an Irregular Figure What is the area of the figure?

More Practice!!!!! Homework – Textbook p. 619 – 620 #8 – 16, 18 – 20 ALL.