How do you find the perimeter of a cemicircle

Question

Heath Vance

Mathematics

22 August, 02:15

How do you find the perimeter of a cemicircle

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Skunk · Answer 1

The perimeter of a circle is π * d where d is the diameter so half of that is 1/2 π * d. But If you are going to walk around a semicircle you need to go half way around the circle and then across a diagonal to get back to where you started so the perimeter is 1/2 π * d + d.