Question

if the volume of a sphere is numerically equal to its surface area then its diameter is:
(a) 2 units
(b) 1 units
(c) 3 units
(D) 6 units

Answer 1

ans is 6 here is the proof

Answer 2

4/3πrcube=4πrSquare
=
1/3rcube=rsquare=rcube/3=r square
=
Rcube=3rsquare
=
R=3units
D=6units