Question

the area a of a trapezoid with height h and bases $b_1$ and $b_2$ is given by the formula $a = \frac{1}{2}h(b_1 + b_2)$. solve the formula for $b_2$. $b_2 = \square$

Explanation:

Step1: Multiply both sides by 2

$$2A = h(b_1 + b_2)$$

Step2: Divide both sides by h

$$\frac{2A}{h} = b_1 + b_2$$

Step3: Subtract $b_1$ from both sides

$$\frac{2A}{h} - b_1 = b_2$$

Answer:

$\frac{2A}{h} - b_1$