Question

Find the volume of each figure. Round your answers to the nearest whole, if necessary.

Answer 1

Given that

The figure is of a cone and we have to find the volume of the cone.

Explanation -

The diameter of the cone is 22km and the height is also 22 km.

So the radius will be

radius = r = d/2 = 22/2 km = 11 km

Hence, r = 11 km and h = 22 km

The formula for the volume of the cone will be

`Volume=(1)/(3)*\pi* r^2h`

On substituting the values we have

`\begin{gathered} V=(1)/(3)*\pi*11^2*22\text{ km}^2 \\ \\ V=(1)/(3)*(22)/(7)*11*11*22\text{ km}^2 \\ \\ V=(58564)/(21)\text{ km}^2=2788.7\text{ km}^2 \end{gathered}`

So B is the correct option.

Final answer -

Hence the final answer is 2788 sq km.