1. Find the Area, Round to the nearest hundredth 8 6 2

2. Areas of Trapezoids Geometry Mr. Zampetti Unit 5, Day 3

3. Objective To be able to find the area of trapezoids

4. Trapezoids The bases of a trapezoid are the parallel sides The legs are the non-parallel sides The height is the perpendicular distance between the two parallel bases. base (b 1 ) Base (b 2 ) leg height (h)

5. Theorem 5-8: 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. A = ½ h(b 1 + b 2 )

6. Example 1 Find the area of a trapezoid with the height of 7 cm, and bases of 12 cm and 15 cm.

7. Example 2: 5 5 2 4 Area = 20.8

8. Real World Example Approximate the area of Arkansas by finding the area of the trapezoid shown.

9. “Review” http://www.quia.com/rr/91670.html http://www.quia.com/mc/961901.html

10. “Review” http://www.quia.com/rr/91670.html http://www.quia.com/mc/961901.html

11. Homework Work Packet: Area of Trapezoids