Question

Type the correct answer in the box.

The area of a trapezoid is calculated using the formula below, where A is the area of the trapezoid, b1 and b2 are the bases of the trapezoid, and h is the height of the trapezoid.

Rewrite the formula to find the base b2.

Answer 1

2(\frac{Area}{h} ) - b1 = b2

Explanation:The formula for calculating the area of a trapezoid is the following.

Area = \frac{b1+b2}{2} * h

What we are asked to find is the formula for finding b2. We can do this by rearranging the Area formula and getting b2 by itself on one side.

Answer 2

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Answer:

b2 = 2A/h -b1

Explanation:

The usual formula for the area of a trapezoid is ...

`A=(1)/(2)(b_1+b_2)h`

We can solve this for b2:

`(2A)/(h)=b_1+b_2 \qquad\text{multiply by $(2)/(h)$}\\\\ (2A)/(h)-b_1=b_2 \qquad\text{subtract $b_1$}\\\\ \boxed{b_2=(2A)/(h)-b_1}`