Question

The square below has area 100. Find the area of the shaded region.

Answer 1

21.46

Explanation:

Start with the square

`A = a^(2) \\100 = a^(2)\\10 = a`

Each side of the square is 10

This also means the diameter of the circle is 10, with a radius of 5

`A = \pi r^(2) \\A = \pi 5^(2) \\A = 78.54`

Now substract the area of the circle from the square

x = 100 - 78.54