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A rolling pin is shaped like a cylinder with a diameter of 3 inches and a height of 12 inches how many square inches of space does the rolling pin coverage one complete roll 

          A rolling pin is shaped like a cylinder with a diameter of 3 inches and a height of 12 inches how many square inches of space does the rolling pin coverage one complete roll

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Geometry A Common Core Curriculum
Geometry A Common Core Curriculum
Ron Larson, Laurie Boswell 1st Edition
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A rolling pin is shaped like a cylinder with a diameter of 3 inches and a height of 12 inches how many square inches of space does the rolling pin coverage one complete roll
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Transcript

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00:01 Now in this problem we are given that there is a rolling pin which is shaped like a cylinder and its diameter we are given to be 3 inch and the height of the pin is 12 inch.
00:16 Now we are asked to find that how many square inch of the space does the rolling pin cover in one complete revolution.
00:27 Now we know that in one complete revolution the area that it covered will be will be equals to its lateral surface area and the lateral surface area is equals to for the cylinder we have 2 pi r h 2 times 22 by 7 times r r we don't have we have diameter so we can divide it with 2 so 3 divided by 2 this is the radius times h is 12 inch...
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