AR - Analyse the surface area of the sphere — task. Maths CBSE Live product, Class 9 (2025-26).

Assertion (A): Increasing the radius of a sphere by \(2\) times increases its volume by \(4\) times.

Reason (R): The volume of a sphere is proportional to the square of its radius.

Both assertion(A) and reason(R) are true but reason(R) is not the correct explanation of assertion(A)
Both assertion(A) and reason(R) are true and reason(R) is the correct explanation of assertion(A)
Both Assertion(A) and reason(R) are false
Assertion(A) is false but reason(R) is true

Did you find an error?

3. AR - Analyse the surface area of the sphere