The amount of three-dimensional space inside a cylinder, found by multiplying the area of the circular base by the height.
Imagine stacking hundreds of identical circular coins into a tall tower. Each coin is a thin circle with area πr2, and stacking h units high gives you a cylinder. The volume is just the area of one coin times the height of the stack.
Showing a random 20 of 50 problems.
Example 1
hard
A hollow cylindrical pipe has outer radius 5, inner radius 4, and length 20. Find the volume of material.
Example 2
medium
How many liters does a cylindrical drum of radius 0.3 m and height 1 m hold? (1 m³ = 1000 L, π≈3.14.)
Example 3
easy
If you double a cylinder's height, what happens to its volume?
Example 4
challenge
Using Cavalieri's principle, explain why an oblique (slanted) cylinder has the same volume as a right cylinder with the same base and height.
Example 5
medium
A pipe is a hollow cylinder: outer radius 5, inner radius 3, length 10. Find the volume of material in terms of π.
Example 6
easy
If you double a cylinder's radius (height fixed), what happens to its volume?
Example 7
easy
A cylinder's base area is 36π and its height is 5. Find its volume.
Example 8
medium
A water bottle is a cylinder with radius 3 cm and height 20 cm. How many milliliters does it hold? (1 cm3=1 mL, use π≈3.14.)
Example 9
easy
A cylinder has a radius of 4 cm and a height of 10 cm. Find its volume. Use π≈3.14.Find the volume of this cylinder (use π ≈ 3.14).
Example 10
medium
A pool is a cylinder with radius 5 m and depth 2 m. How many cubic meters of water does it hold? Leave answer in terms of π.Find the volume in terms of π.
Example 11
medium
A cylinder's radius is tripled while its height stays the same. By what factor does its volume change?
Example 12
hard
A cylindrical silo has volume 1000π m³ and height 10 m. Find its diameter.Volume = 1000π m³. Find the diameter.
Example 13
hard
A cylindrical tank of radius 2 m is being filled at 4π m³/min. How fast (in m/min) does the water level rise?
Example 14
easy
A cylinder has radius 3 and height 10. Find its volume in terms of π.Find the volume in terms of π.
Example 15
medium
A cylinder's height equals its diameter. If the radius is r, write its volume in terms of r and π.
Example 16
medium
A cylinder has volume 108π and height 3. Find its radius.Volume = 108π. Find r.
Example 17
easy
What is the volume of a cylinder with radius 6 and height 0?
Example 18
medium
Water in a cylinder of radius 3 has depth 8. The water is poured into an empty cylinder of radius 4. Find the new depth.
Example 19
challenge
A cylindrical glass of radius 4 is tilted until water just reaches the rim on one side and the base edge on the other. If full height is 10, estimate the water volume as half-full reasoning suggests.
Example 20
easy
What does r stand for in the cylinder volume formula V=πr2h?