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Basic Geometry
Basic Geometry
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Perimeter & Circumference Examples Page 3

Page (3 of 3) Examples:   1    2    3  
Example 3

Find the radius of a circle with circumference of 31.4 cm.

Circle (6)

In this problem we need to work backwards to find the radius. We start by plugging in the information we know:

c = d (pi)

31.4 = d x (pi)


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