Question

Area between two concentric circles of radii R and r

Answer 1

Ans: Area between two concentric circles of radii R and r = pi (R^2 - r^2)

Answer 2

Answer:

Step-by-step explanation:

Area of larger circle=22÷7×R×R

Area of smaller circle=22÷7×r×r

Difference between them=22÷7(R×R-r×r)