Question

What is the volume of the cone to the nearest cubic meter? (Use π = 3.14) A)21 m3 B)84 m3 C)168 m3 D)335 m3

Answer 1

Given:

The height of the cone, h=5m.

The radius of the base of the cone, r=4 m.

The volume of the cone can be calculated as,

$\begin{gathered} V=\frac{1}{3}\pi r^2h \\ V=\frac{1}{3}\times\pi\times4^2\times5 \\ V=\frac{1}{3}\times3.14\times16\times5 \\ V\approx84m^3 \end{gathered}$

Therefore, the volume of the cone is 84 cu.m.

Hence, option B is correct.