Question

The area of the trapezium is 63cm and the top is 6cm and the bottom is 12cm what’s the height

Answer 1

height = 7 cm

Explanation:

The area (A) of a trapezium is calculated using the formula

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

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

here a = 6, b = 12 and A = 63, hence

`(1)/(2)` × h × (6 + 12) = 63

`(1)/(2)` h × 18 = 63

9h = 63 ( divide both sides by 9 )

h = 7