Question

The formula for the area of a trapezoid is A = 12(a + b)h. Rearrange the formula to solve for b.

Question 4 options:

b=2Aha

b=A−12h + a

b=2Ah− a

b=12Ah − a

Answer 1

• b = 2A/h - a

Explanation:

Formula for the area of a trapezoid:

• A = 1/2(a + b)h

Solving for b:

• A = 1/2(a + b)h
• 2A = (a + b)h
• 2A/h = a + b
• b = 2A/h - a