Question

Find the area of a trapezium which has a height 20 cm and its parallel sides are 7 cm and 8 cm long​

Answer 1

150cm²

Explanation:

area of trapezium=1/2h(a+b)

=1/2×20(7+8)

=10(15)

=150 cm²

Answer 2

The area of the trapezium is

150 cm²

Explanation:

The area of a trapezium is given by

`Area = (1)/(2) (a + b) * h`

where

h is the height

a and b are the parallel sides of the trapezium

From the question

h = 20cm

a = 7cm

b = 8 cm

Substitute the values into the above formula

We have

`Area = (1)/(2) (7 + 8) * 20`

`Area = (1)/(2) * 15 * 20`

`Area = 15 * 10`

We have the final answer as

Area = 150 cm²

Hope this helps you