Question

HELP FAST SO CONFUSED

Find the area of the shaded sector. Leave your answer in terms of π.

Answer 1

Total area: pi*9^2 = 81pi

Shaded area = Total area / 3, because 120/360 = 1/3

So Shaded area = 81pi/3 = 27pi

Answer 2

area of a circle is pi x r^2

r = 9 ft so 9^2 = 81

so the full area in terms of PI is 81PI

 now the shaded area is 120 degrees ( one third of the full area)

120/360 = 1/3

 so divide 81 by 3 = 81/3 = 27

so shaded area is 27PI