2. Two mark example problems I

1. Find the volume of a cylinder whose height is 2 \(m\) and whose base area is 250 \(m^2\).

 

Answer:

 

The volume of a cylinder \(=\)  \(m^3\)

 

 

2. The volume of a cylindrical water tank is \(1.078 \times 10^6\) litres. If the diameter of the tank is \(7 m\), find its height.

 

Answer:

 

The height of the cylindrical water tank \(=\)  \(m\)

 

 

3. Find the volume of the iron used to make a hollow cylinder of height \(9 \ cm\) and whose internal and external radii are \(21 \ cm\) and \(28 \ cm\) respectively.

 

Answer:

 

The volume of the iron used to make a hollow cylinder \(=\)  \(cm^3\)

 

 

4. The volume of a solid right circular cone is \(11088 \ cm^3\). If its height is \(24 \  cm\) then find the radius of the cone.

 

Answer:

 

The radius of the cone \(=\)  \(cm\)