Question

What's the area of the composite figure below ?

Answer 1

31.13

Explanation:

If you look carefully, you will find a semicircle and a triangle.

The total area is =

`(\pi r^(2))/(2) + (1)/(2) * base * height\\`

• r = 4 - 0 = 4
• base = |-4-0 | = 4
• height = 14 - 9 = 5

So if we put the values:

`(\pi * 4^(2))/(2) + (1)/(2) * 4 * 3\\= 31.13`