Question

If the volume of a sphere is numerically equal to its surface area. Then
radius of sphere is.
(a) 1 unit
(b) 3 unit
(c) 2 unit
(d) 6 unit​

Answer 1

Answer:

3 units

Step-by-step explanation:

Volume of sphere=

3

4

πr

3

Surface area of sphere=4πr

2

According to the question

⇒

3

4

πr

3

=4πr

2

⇒

3

r

=1

⇒r=3