Question

Calculate the shaded area.
Give your answer to 3 significant figures and state it’s units.

Answer 1

First you take the big half circle’s radius and find the area of the whole thing:
12(3.14)=37.68
Then you subtract it from the smaller circle which has a radius of 6:
6(3.14)= 18.84
Final answer: 37.68-18.84=18.84