Question

22. Work out

area of shape A :
area of shape B :

Give your answer in its simplest form

Answer 1

24 units² and 6 units²

Explanation:

shape A

is composed of 2 rectangles , left and right

the rectangle on the left has dimensions 8 by 2

the rectangle on the right has dimensions 4 by 2

total area = (8 × 2) + (4 × 2) = 16 + 8 = 24 units²

shape B is a triangle with area (A) calculated as

A =
`(1)/(2)` bh ( b is the base and h the height )

here b = 4 and h = 3 , then

A =
`(1)/(2)` × 4 × 3 = 2 × 3 = 6 units²