How much longer must we make the radius?

label Mathematics
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The circumference of a circle is 15 inches. We want to increase the circumference to 18 inches.

Apr 29th, 2015

3.14D = 15        D = 4.777                Radius1 = 2.388

3.14D = 18        D = 5.732                Radius2 = 2.866

2.866 - 2.388 = 0.5

Apr 29th, 2015

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