# Volume Calculation of a Cone: Changing radius at Constant Height

Derive a formula that estimates the change that occurs in the volume of a right circular cone when the radius changes from r0 to r1 and the height does not change.

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#### Solution Preview

Because,

V = (1/3) *pi*(r^2)*h

when radius changes from r to r + dr:

V+dV ...

#### Solution Summary

The volume of a cone is derived when radius changes and height remains constant. The change that occurs in the volume of a right circular cone when the radius changes is estimated.

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