1. Lesson 11.2: Areas of Triangles, Trapezoids, and Rhombus
Geometry CP
Mrs. Mongold

2. Area of a Triangle h h b
A = bh h b

3. Find the area of the figure. Round to the nearest tenth if necessary.

4. The height of a triangle is 12 inches more than its base
The height of a triangle is 12 inches more than its base. The area of the triangle is 560 square inches. Find the base and the height.

5. Area of a Rhombus
A = d1d2 d1 d2

6. Find the area of the rhombus.

7. One diagonal of a rhombus is half as long as the other diagonal
One diagonal of a rhombus is half as long as the other diagonal. If the area of the rhombus is 64 square inches, what are the lengths of the diagonals?

8. b1
A = h(b1+b2) h b2
median
A =h x median h

9. Find the area of the trapeziod.

10. Find the area

11. Trapezoid QRST has an area of 210 square yards. Find the height of QRST.