Question

The circle below has a radius of 12 cm. What is the area of the shaded region? If necessary, round your answer to two decimal places. Do not include units in your answer.

Answer 1

the shaded area is a quarter of a circle firstly because logic and because 90/360=1/4

so get the total area of the circle from
2πr
= 2π(12)

then divide by four
2π(12)÷4
=?

Answer 2

18.84

Answer 3

no calculator, no idea. but if you calculated correctly, that should be it ^^