1. A cylinder has a base of radius 5 cm and height of 21 cm. What is its volume?

2. A cylinder has a base of radius 7 cm and height of 17 cm. What is its volume?

3. What is the volume of the iron required to make a 70 cm long rod of 2.1 cm diameter?

4. How many litres of water a tank of 385000 cu cm volume can hold?

5. What is the area of curved surface of cylinder with 8 cm radius and 35 cm height?

6. What is the area of curved surface of cylinder with 5 cm base radius and 15 cm height?

7. What is the curved surface area of cone with slant height 10 cm and base radius 7 cm?

8. The radius of a sphere is 30 cm, what is its volume?(π=3.14)

9. The volume of a sphere is 36000 π cu cm. What is its radius?

10. What is the surface area of sphere of 2.8 cm radius?

11. If the surface area of a sphere is 616 sq cm, what is its radius?