Question

PLEASE HELP PLEASE PLEASE

Answer 1

Answer:

Unshaded sector = 78.5

Shaded Sector = 628

Step-by-step explanation:

There are two sectors there. I'll do them both.

Unshaded

The central angle of the unshaded part is 360 - 320 = 40 degrees.

r = 15

pi = 3.14

Area sector = theta/360 * pi *r^2

Area Small sector = (40/360) * 3.14 * 15^2 Reduce 40/360 expand 15^2

Area Small Sector = (1/9) * 3.14 * 225         combine

Area Small sector = 78.5

Shaded sector

Area Large sector = (320/360) * 3.14 * 15^2

Area Large Sector = 628