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The perimeter of a semi circle is 20.56 MM. What is the semicircle of radius?
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The perimeter of a semi circle is 20.56 MM. What is the semicircle of radius?

User Deshawn
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1 Answer

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Perimeter = 20.56mm

Given the perimeter, find the diameter

\pi D = 20.56
D = 20.56 รท
\pi
D = 6.54 mm

Perimeter of the Semicircle = half the circle arc + the straight line (Diameter)
Semicircle = 0.5(20.56) + 6.54cm
Semicircle = 16.83mm
User KevSheedy
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