The radius of a semicircle is 1 mile. What is the semicircle's perimeter?

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23-04-2020
Mathematics

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The radius of a semicircle is 1 mile. What is the semicircle's perimeter?

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saraahmed22sayid saraahmed22sayid · Answer 1 · 2020-04-23T08:14:29+02:00

saraahmed22sayid saraahmed22sayid

23-04-2020

The perimeter of a circle is given by:

P = 2 * π * r where r is the raduis.

Therefore the length of a semicircle is π * r

The radius is therefore

r = 10.28mm / π = 3.272mm

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