Name: SAT Math Help & School Math Mastery
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#35413

equations

formulas

medium

60 sec

The area $A$ of a trapezoid is given by the formula $A = \frac{1}{2} h (b_{1} + b_{2})$ , where $h$ is the height and $b_{1}$ and $b_{2}$ are the lengths of the two parallel bases. Which equation correctly expresses the height $h$ in terms of $A$ , $b_{1}$ , and $b_{2}$ ?

A.

$h = 2 A - b_{1} - b_{2}$

B.

$h = \frac{A}{2 ( b _{1} + b _{2} )}$

C.

$h = \frac{2 A}{b _{1} + b _{2}}$

D.

$h = \frac{A ( b _{1} + b _{2} )}{2}$