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What is the approximate circumfrence of the cirlce that has a center at (2,1) and passes through the point (2,5)

 May 11, 2017
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If the center of a circle is (2, 1) and the circle passes through the point (2, 5), the distance from the center to the point is 4.

This is the radius.

A formula for the circumference of a circle is:  C  =  2·pi·r     --->     C  =  (2)·(3.14)·(4)     --->   C  =  25.12

 May 11, 2017

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