Question

The radii of the top and base of a frustum are 14cm and 8cm respectively. It's height is 8cm. Find its volume

Answer 1

FRUSTUM VOLUME FORMULA

Answer 2

Given :-

• R = 14cm, r = 8cm.
• Height = 8cm.

To find :-

• Volume = ?

We know that the volume of frustum is :-

→ π/3h * ( R^2 + r^2 + R × r )

putting given values :-

→ π/3h * ( R^2 + r^2 + R × r )

→ π/3 × 8 × ( 14^2 + 8^2 + 14 × 8 )

→ π/3 × 8 × ( 196 + 64 + 112 )

→ π/3 × 8 × 372

→ π/3 × 46.5

→ 3116.45991 cm

Hence the Volume is equals to 3116.45991 cm.