Question

A trapezoid has bases of lengths 13 cm and 17 cm. The

height of the trapezoid is 9 cm. What is the area of the
trapezoid?

Answer 1

135 cm²

Explanation:

The area (A) of a trapezoid is calculated as

A =
`(1)/(2)` h(a + b)

where h is the height and a, b the parallel bases

Here h = 9, a = 13 and b = 17 , thus

A =
`(1)/(2)` × 9 × (13 + 17)

= 0.5 × 9 × 30

= 135 cm²