Practice30Create account

Ritu's steel drum has a curved surface of 1320 sq cm and the circumference of its base is 66 cm. How tall is the drum?

Class 8Surface Area of a CylinderMensuration
  • A20 cm
  • B1254 cm
  • C10 cm
  • D40 cm

Step-by-Step Solution

CSA = circumference × height, so height = 1320 ÷ 66 = 20 cm. 1254 comes from subtracting instead of dividing.
Answer: A) 20 cm

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Surface Area of a Cylinder practice questions

More Class 8 Surface Area of a Cylinder practice

A tank open at the top has radius 7 m and depth 10 m. How much metal sheet is needed for…Kabir makes a pen holder (open at the top) from cardboard. It is a cylinder of radius…A sheet of tin 44 cm long and 20 cm wide is bent so that the 44 cm edge goes once round…Cylinder A has radius 7 cm and height 10 cm. Cylinder B has radius 10 cm and height 7…The net of a closed cylinder is shown: a rectangle with two circles. What is the total…