1. 11.2 Areas of Triangles, Trapezoids, and Rhombi What you’ll learn: 1.To find areas of triangles 2.To find areas of trapezoids and rhombi.

2. Area of a Triangle A=½bh Ex: Find the area of  ABC

3. Area of a Trapezoid b b h

4. Area of a Rhombus If AC=20 and BD=24 The area would be A=½  20  24 A=240 inches ² AB C D

5. Find the area of quadrilateral ABCD if AC=35, BF=18, and DE=10 A=490 units ² A B C D E F

6. Find the area of trapezoid RSTU with vertices R(4,2), S(6,-1), T(-2,-1), and U(-1,2)

7. Find the area of rhombus MNPR with vertices at M(0,1), N(4,2), P(3,-2), and R(-1,-3)

8. Rhombus RSTU has an area of 64 square inches. Find US if RT=8 in. R S T U

9. Homework p. 14-34 even