Question

Assertion(A): A circular ring whose outer radius is 20 cm and width of
the ring is 4 cm, then the ratio of their outer and Inner radii is 5: 4
Reason (R): Area of a circular path = (R2 - r2) sq. units
1) If both A and R are true and R is the correct explanation of A. 2) If both A and R are true but R is not the correct explanation of A.
3) If A is true but R is false.
4) If A is false but R is true.

Answer 1

Answer:

thnks but pliZ don't report