Find the Circumference circle (2.5)

Math
The circumference of a circle is equal to Pi times the diameter .
Since the diameter is equal to times the radius , the formula for circumference using radius is .
Substitute the value of the radius into the formula for the area of a circle. Pi is approximately equal to .
Multiply .
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Multiply by .
Multiply by .
Find the Circumference circle (2.5)

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