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OverLord2011 [107]
3 years ago
9

When finding the perimeter of a circle and half circle, what's the usual formula? ​

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
6 0
Or an easier way is 2* pi* r(radius)
Shkiper50 [21]3 years ago
4 0

Answer:

The perimeter of a semicircle includes the arc and the diameter. Here are some formulas that you can use.

Step-by-step explanation:

   P = C / 2 + d

       where C is the circumference of the whole circle

   P = π r + 2r

       where r is the radius

       P = (2 + π) r

   P = (d π / 2) + d

       P = d π / 2 + 2 d / 2

       P = (d π + 2 d) / 2

       P = (2 + π) d / 2

Found at this website here: https://www.quora.com/What-is-the-formula-for-the-perimeter-of-a-semicircle

Hope this Helped! Good Luck!

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