Practice30Create account

If the radius of a cone is doubled while the height is kept the same, the volume becomes ___ times the original.

Class 9Volume of a ConeMensuration
  • A4
  • B2
  • C8
  • D3

Step-by-Step Solution

V is proportional to . Doubling multiplies by 4, so volume becomes 4 times.
Answer: A) 4

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 Volume of a Cone practice questions

More Class 9 Volume of a Cone practice

A cone has slant height 5 cm and base radius 3 cm. Find its volume. (Use π = 3.14)A conical heap of wheat has radius 6 m and height 3.5 m. Find its volume. (Use π = 22/7)A cone has volume 462 cm^3 and height 9 cm. Find its base radius. (Use π = 22/7)Anita pours water from a cylindrical jug into conical glasses. The jug has radius 6 cm…A farmer in Punjab piles harvested grain into a conical heap. The heap is 7 m across at…