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Mathematics 10 Online
OpenStudy (anonymous):

The perimeter of a quarter circle is 10.71 centimeters. What is the quarter circle's radius? P=10.71 cm

OpenStudy (freckles):

Do you know the formula for circumference of a circle ?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

\[P=\frac{ \pi r }{ 2 }+2r\]

OpenStudy (freckles):

well I don't see a way to solve this without knowing that ... the circumference of a circle is 2pi*r a quarter of the circumference is 1/4*2pi*r now you have to consider the radi as well |dw:1459958197313:dw|

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