Question

what is the volume of the frustum , shown in the figure ( use π = 22/7)​

Answer 1

hence the volume of frustum is 239.3978

Answer 2

Given:

radius of lower base R = 5 cm

radius of upper base r = 3 cm

height h = 7 cm

To find:

the volume of the frustum V =?

Step-by-step explanation:

• Mathematically the volume of the frustum is given by:

        $\displaystyle V = \frac{1}{3}\pi [R^2+Rr+r^2]h^$

       where

        V = the volume of the frustum

        R = radius of the lower base of the frustum

         r = radius of the upper base of the frustum

         h = height of the frustum

• Put the given values in the expression of the volume of the frustum.

        $\displaystyle V = \frac{1}{3}\ \pi\ [5^2+5\times 3+3^2]\ 7^$

        V = 359 cm³

• Hence, the volume of the frustum shown in the figure is 359 cm³.