alayn52306 alayn52306

30-04-2019
Mathematics

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The perimeter of a semicircle is 20.56 yards. What is the semicircle's radius?

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nicolesan3 nicolesan3

30-04-2019

Answer:

Step-by-step explanation:

Perimeter = 20.56mm

Given the perimeter, find the diameter

= 20.56

D = 20.56 ÷

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

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