Maths-
General
Easy
Question
What is the radius of a cylinder that has a height of 3 in. and a volume of 
?
The correct answer is: 3x + 1 is the radius of the cylinder
using the radius and height of the cylinder .Substitute them in the formula for finding the volume and equate it with the given volume to find the value of radius of cylinder.
ANS :- 3x+1 is the radius of the cylinder .
Let r be the radius of the cylinder.
Given, height is 3 in. and volume of cylinder is 
We know volume of cylinder = 
As we know here 
,
Then we get
∴ 3x+1 is the radius of the cylinder .
As we know here
,Then we get
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