Question

FIND THE HEIGHT OF THE TRAPEZOID A =80 CM2 7CM 9cm what is H

Answer 1

$\text{Area = }\frac{(B\text{ + b) }\cdot\text{ a}}{2}$

B = 9

b = 7

A = 80

a = ?

Substitution

$\begin{gathered} \text{ 80 = }\frac{(9\text{ + 7)}\cdot a}{2} \\ \text{ 80 = }\frac{16a}{2} \\ \text{ 80 = 8a} \\ \text{a = }\frac{80}{8} \\ a\text{ = 10 cm} \end{gathered}$

The height of the trapezoid is 10 cm