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Published byBlaise Fitzgerald
Modified over 4 years ago
3/31/2015 9-1 D Area of Trapezoids
Example 1 Find the area of the trapezoid. A = 1212 h(b 1 + b 2 ) The area is 53 yd 2. A = 1212 · 4(26 ) 1 2 1 2 1212 A = · 4(14 + 12 ) 1 2
Example 2 Find the area of the trapezoid. The bases are 4 meters and 7.6 meters. The height is 3 meters. The area of the trapezoid is 17.4 square meters.
Example 2 The shape of the state of Montana resembles a trapezoid. Find the approximate area of Montana. Replace h with 285, b 1 with 542, and b 2 with 479.
The approximate area of Montana is about 145,493 square miles.
Homework Pg. 537 #1-24 Evens
Vocabulary height of a trapezoid- the perpendicular distance between its bases.
Do Now 1.) 2). 5/15/ C Surface Area of Cylinders.
Splash Screen. Lesson Menu Five-Minute Check (over Lesson 11–1) Main Idea Key Concept: Area of a Triangle Example 1:Find the Area of a Triangle Key Concept:
Do Now True or false? 1. Some trapezoids are parallelograms.
Do Now /30/ B Volume of Prisms.
TODAY IN GEOMETRY… BOOK RETURN: by this Friday! Learning Target 1: You will find areas of different polygons AT EXIT: In class assignment.
Solving Volume Problems. Warm Up Complete the table. PrismBase Area of Base Triangular Prism Rectangular Prism Trapezoidal Prism.
Do Now DWP #62. 3/16/ B Quadrilaterals and Angle Sums.
EXAMPLE 1 Find the area of a trapezoid BASKETBALL
Splash Screen. Lesson Menu Five-Minute Check (over Lesson 11–2) Main Idea and Vocabulary Key Concept: Circumference of a Circle Example 1:Real-World Example:
Area of Rhombus and Trapezoid Area of a trapezoid A = (1/2) h (b 1 +b 2 ) Area of a rhombus A = (1/2) d 1 d 2.
EXAMPLE 1 Find the area of a trapezoid BASKETBALL The free-throw lane on an international basketball court is shaped like a trapezoid. Find the area of.
You will learn to find the perimeter and area for different shapes and the circumference of circles. s s Perimeter = 4s or s+s+s+s Area = s 2 l w P =
Holt CA Course Area of Triangles and Trapezoids AF3.1 Use variables in expressions describing geometric quantities (e.g., P = 2w + 2l, A = bh, C.
4.6 Numerical Integration Trapezoid and Simpson’s Rules.
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.
Geometry 11.3 Areas of Trapezoids.
11-5 Area of Triangles and Trapezoids
Areas of Trapezoids Geometry Unit 4, Lesson 2.
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