SAT Area and volume Practice Question 12 (Easy)

Math · Geometry and TrigonometryEasy

A trapezoid has parallel bases of lengths $8$ inches and $14$ inches, and its height is $5$ inches. What is the area, in square inches, of the trapezoid?

$40$

$55$

$70$

$110$

Show answer and explanation

Answer: B

The area of a trapezoid is $\frac{1}{2}(b_1 + b_2)h$ . So $A = \frac{1}{2}(8 + 14)(5) = \frac{1}{2}(22)(5) = 55$ square inches.

Choice D forgets the factor of $\frac{1}{2}$ .

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