# Volume of Cylinders (Grade 8)

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## Volume of Cylinders

1.

What is the formula for the volume of a cylinder?

- [math]V = l xx w xx h[/math]
- [math]V = 1/3pir^2h[/math]
- [math]V=pir^2h[/math]
- [math]V=4/3pir^3[/math]

2.

Ace Canning Company is redesigning its product. The new cans will have twice the radius, but the same height of the original cans. Which statement is true about the volume of the new cans compared to the volume of the original cans?

- the volumes of the new and original cans will be equal
- the volume of the new cans will be twice the volume of the original cans
- the volume of the new cans will be four times the volume of the original cans
- not enough information to determine

3.

What is the approximate volume of a cylinder with a radius of 5 in and a height of 4 in?

- 63 inches cubed
- 105 inches cubed
- 251 inches cubed
- 314 inches cubed

4.

A pencil has a diameter of 0.75 cm and a length of 20 cm. How much wood is in the pencil?

- 26.5 [math]cm^3[/math]
- 8.8 [math]cm^3[/math]
- 35.3 [math]cm^3[/math]
- 6.3 [math]cm^3[/math]

5.

Find the volume of the right cylinder with a diameter of 42 and height of 16.

6.

Find the volume of the right cylinder with a diameter of 18 and height of 2.

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