The volume of frustum of a cone is calculated by using the formula ______

V =

\frac{π h}{3} (R^{2} + R r + r^{2})

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V =

\frac{π h}{3} (R^{2} - R r - r^{2})

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V =

\frac{π h}{3} (R^{2} - R r + r^{2})

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V =

\frac{π h}{3} (R^{2} + R r - r^{2})

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Solution

The correct option is A V = $\frac{π h}{3} (R^{2} + R r + r^{2})$
The volume of frustum of a cone is calculated by using
the formula V = $\frac{π h}{3} (R^{2} + R r + r^{2})$
where R is radius of base circle; r
is radius of top circle; h is height or distance between the
centres of the base and the top circles.

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