Question

Help me please i dont know how to do this

Answer 1

By the larger circle, they mean the red area plus the white area. We now must calculate the area of both.

Small circle area (white area)= PI * 4.02^2 = 50.77 square inches

TOTAL Circle Area (red and white) = PI * 8.01 *8.01 = 201.56

(Red area)= PI * 8.01^2 -50.77

(Red area)= 201.56 -50.77 = 150.79

A point chosen in the TOTAL 201.5648988136 square inch area has the probability of being in the read area=

red area / TOTAL area = 150.79 / 201.56

probability = .748 = 74.8% of the time.