Question

find the area of shaded region if radius of two concentric circle with Centre O are 7 cm and 14 cm respectively and angle AOC equal to 40 degree ​

Answer 1

you don't provide the shaded region..

Answer 2

Answer:

51.33 cm^2

Step-by-step explanation:

area of smaller sector -40°\360×π[7]^2=154/9

area of larger sector- 40°\360×π[14]^2=616/9

area of shaded region-= 616/9- 154/9

=51.33cm^2