SAT Math : How to find the volume of a cylinder

Study concepts, example questions & explanations for SAT Math

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Example Questions

Example Question #151 : Solid Geometry

ABC Pipeworks manufactures a 12 foot copper alloy pipe that has an internal diameter of 0.76 inches and an external diameter of 0.88 inches. If two grams of copper are in every 3 cubic inches of pipe material. How many grams of copper are in this pipe?

Possible Answers:

Correct answer:

Explanation:

First convert all units to inches. 

internal diameter: 0.76 inches

external diameter: 0.88 inches

length: 144 inches

You are going to need to subtract the interior volume of the empty space inside the pipe from the external volume of the of the pipe.


Copper pipe

 

Now, we need to determine how many grams of copper are in the pipe. 

Example Question #851 : Sat Mathematics

Find the volume of the figure.

7

Possible Answers:

Correct answer:

Explanation:

13

In order to find the volume of the figure, we will first need to find the volume of both cylinders.

Recall how to find the volume of the cylinder:

Now, use the given radius and height to find the volume of the larger cylinder.

Next, use the given radius and height to find the volume of the smaller cylinder.

Subtract the volume of the smaller cylinder from the volume of the larger one to find the volume of the figure.

Make sure to round to  places after the decimal.

Example Question #113 : Solid Geometry

Find the volume of the figure.

8

Possible Answers:

Correct answer:

Explanation:

13

In order to find the volume of the figure, we will first need to find the volume of both cylinders.

Recall how to find the volume of the cylinder:

Now, use the given radius and height to find the volume of the larger cylinder.

Next, use the given radius and height to find the volume of the smaller cylinder.

Subtract the volume of the smaller cylinder from the volume of the larger one to find the volume of the figure.

Make sure to round to  places after the decimal.

Example Question #29 : How To Find The Volume Of A Cylinder

Find the volume of the figure.

9

Possible Answers:

Correct answer:

Explanation:

13

In order to find the volume of the figure, we will first need to find the volume of both cylinders.

Recall how to find the volume of the cylinder:

Now, use the given radius and height to find the volume of the larger cylinder.

Next, use the given radius and height to find the volume of the smaller cylinder.

Subtract the volume of the smaller cylinder from the volume of the larger one to find the volume of the figure.

Make sure to round to  places after the decimal.

Example Question #42 : Cylinders

Find the volume of the figure.

10

Possible Answers:

Correct answer:

Explanation:

13

In order to find the volume of the figure, we will first need to find the volume of both cylinders.

Recall how to find the volume of the cylinder:

Now, use the given radius and height to find the volume of the larger cylinder.

Next, use the given radius and height to find the volume of the smaller cylinder.

Subtract the volume of the smaller cylinder from the volume of the larger one to find the volume of the figure.

Make sure to round to  places after the decimal.

Example Question #11 : Cylinders

Jessica wishes to fill up a cylinder with water at a rate of  gallons per minute. The volume of the cylinder is  gallons. The hole at the bottom of the cylinder leaks out  gallons per minute. If there are  gallons in the cylinder when Jessica starts filling it, how long does it take to fill?

Possible Answers:

Correct answer:

Explanation:

Jessica needs to fill up  gallons at the effective rate of .  divided by  is equal to . Notice how the units work out.

Example Question #31 : How To Find The Volume Of A Cylinder

The figure below represents a cylinder with a smaller cylinder removed from its middle.

 

Find the volume of the figure.

6

Possible Answers:

Correct answer:

Explanation:

13

In order to find the volume of the figure, we will first need to find the volume of both cylinders.

Recall how to find the volume of the cylinder:

Now, use the given radius and height to find the volume of the larger cylinder.

Next, use the given radius and height to find the volume of the smaller cylinder.

Subtract the volume of the smaller cylinder from the volume of the larger one to find the volume of the figure.

Make sure to round to  places after the decimal.

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