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The radius of a cone increase by 10% and height is decrease by 20% find change in Its volume
Verified Answer
The radius of a cone increase by 10% and height is decrease by 20% fin...
The volume of a cone = 1/3πr^2h

The change in radius is :

= 1.027r
The change in height :

= 0.991h
The change in volume is :

(1.027r)
^2
� 0.991h = 1.045236r
^2
h
1.045236r
^2
h - r
^2
h = 0.045236r
^2
h
0.045236r
^2
h/r
^2
h = 0.045236
0.045236 � 100 = 4.5236%
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The radius of a cone increase by 10% and height is decrease by 20% find change in Its volume
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