# Math

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A rectangular prism has a length of 100 cm, a height of 10 cm and a width of 5 cm.

What is the volume of the rectangular prism?

A. 3100 square centimeters
B. 1550 square centimeters
C. 5000 square centimeters
D. 1200 square centimeters

2. A cylinder has a diameter of 5 meters and a height of 10 meters.
What is the volume of the cylinder?

A. 188.4 meters cubed

B. 117.75 meters cubed

C. 176.625 meters cubed

D. 196.25 meters cubed

3. A cylinder has a radius of 10 meters and a height of 100 meters.

What is the volume of the cylinder?

A. 65,904 meters cubed

B. 69,008 meters cubed

C. 37,680 meters cubed

D. 31,400 meters cubed

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http://www.mathopenref.com/cylindervolume.html

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C
B
D?

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1 and 3 are correct.

2 is wrong. Did you use the radius in this problem?

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no

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im not sure how to solve this problem at all

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Solve it the same way you solved # 3.

V = pi * r^2 * h

See the website above for more explanation.

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divide the left and right side of the equation by ð r^2

V / (ð r ^2) = h ?

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You need to find the volume of the cylinder. Use the volume formula above.