The circumference of a circle is $8pi$ cm. What is the diameter of the circle?

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Answer 1 · 2015-12-28T21:39:07

$8cm$

The for the circumference of a circle is $C=2pir=pid$ , where the diameter $d=2r$ .

So in this case, by comparing terms we see that, $d=8cm$ .

The circumference of a circle is 8pi8pi cm. What is the diameter of the circle?