98 points find the area of both the shaded regions

1.  40π/3

2. 18π

Step-by-step explanation:

For the first shaded region.

OA = OC

OD = OB

=> OA = 3+4 = 7 => R = 7

=> Circle area = π·7^2 = 49π

120/360 = 1/3 => The area of shaded region + mini region is (1/3)·49π = 49π/3

The area of white mini region with radius 3 is (1/3)·π·3^2 = 3π

=> The area of the shaded region is 49π/3 - 3π =

= 40π/3

For the second shaded region:

R = 9 cm.

Circle area  = π·9^2 = 81π

80/360 = 2/9

=> The area of the shaded region is (2/9)×81π =  18π

嗨 爱 是 爱 嗨 meaning answer 1 is 48/3 and answer 2 is 8

c

step-by-step explanation: