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The outer edge of the dime is about 55mm. What is the approximate length of the radius?
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The outer edge of the dime is about 55mm. What is the approximate length of the radius?

User Kingiol
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1 Answer

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To find the approximate length of the radius, you will use the formula for finding the circumference of a circle and solve for the radius (r).

C = 2 x pi x r
55 = 2 x 3.14 x r
55 = 6.28 x r
6.28 6.28
r = 9.2 mm

The approximate radius is 9.2 mm.
User Mpjan
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