State true or false for the following. The volume of the frustum of a cone is 1 3 πh r 1 2 + r 2 2 − r 1 r 2   where h is vertical height of the frustum and r 1 , r 2   are the radii of the ends.

# State true or false for the following. The volume of the frustum of a cone is   where h is vertical height of the frustum and   are the radii of the ends.

1. A
True
2. B
False

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### Solution:

We have been given that volume of frustum of cone is  .
We know that the formula for the volume of frustum of cone is given by-   where h is vertical height of the frustum and   are the radii of the ends.
Therefore, the given statement is false.
Therefore, the correct answer is option (2).

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