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The perimeter of a circle is also known as what

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The perimeter of a circle is also known as what?

May 11th, 2014

The perimeter of a circle is called the circumference. 

circumference = 2πr, where r is the radius 

so the curved edge of a semicircle is half of that, or πr

May 11th, 2014

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May 11th, 2014
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May 11th, 2014
Jun 26th, 2017
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