Question

will give medal!! Area of shaded region?

Answer 1

@jim_thompson5910 @ingenuus

Answer 2

what is the area of that circle?

Answer 3

use A = pi*r^2

in this case, r = 12

Answer 4

452.16?(:

Answer 5

now you just want a piece of the circle, not the whole thing

in this case, you want 90/360 = 1/4 of the circle

Answer 6

so you multiply the area by 1/4 or 0.25

Answer 7

113.04?(:

Answer 8

you got it