Question

how many rectangle can be formed from circle of radius r

Answer 1

Ni rectangle should be formed

Answer 2

it depends on the value of r
for ex
Input: R = 2
Output: 8
8 rectangles can be cut from a circular sheet of radius 2.
These are: 1×1, 1×2, 2×1, 2×2, 1×3, 3×1, 2×3, 3×2.

Input: R = 1
Output: 1
Only one rectangle with dimensions 1 X 1 is possible.