Question

Need help badly

#15 Find the area of each sector.

Answer 1

The highlighted sector is exactly 3/4 of the circle area, because
`(3\pi)/(2)` is 3/4 of
`2\pi` which is a complete rotation.

Since you are given the radius, you can compute the area as

`A = \pi r^2 = 16\pi`

So, 3/4 of this area would be
`12\pi` squared cm.

The remaining sector, of course, is
`4\pi` squared cm.