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
Answers
Answered by
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
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