## Surface area and Volume of a cylinder

Posted by on Monday, May 28, 2012 Under: Math Geometry and Measurement

In : Math Geometry and Measurement

Posted by on Monday, May 28, 2012 Under: Math Geometry and Measurement

Surface area of a cylinder

Definition: The number of square units it takes to exactly cover the surface of a cylinder.

Try this Drag the orange dot to the left to "unroll" the cylinder.

Volume enclosed by a cylinder

Definition: The number of cubic units that will exactly fill a cylinder

Try this Drag the orange dot to resize the cylinder. The volume is calculated as you drag.

Since the end (base) of a cylinder is a circle, the area of that circle is given by

Multiplying by the height *h* we get

where:π is Pi, approximately 3.142r is the radius of the circular end of the cylinderh height of the cylinder |

source : http://www.mathopenref.com

In : Math Geometry and Measurement

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