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Mathematics 13 Online
OpenStudy (anonymous):

Find the area of a circle whose radius is 5.29 centimeters. Round to the nearest tenth.

OpenStudy (anonymous):

plz help

OpenStudy (anonymous):

For a circle, the formula for area is: \[A=\pi r^{2}\] we get our answer by substituting known values: \[A=\pi (5.29cm)^{2}\]\[A=\pi 27.9841cm^{2}\] \[A=87.91 cm^{2}\]

OpenStudy (anonymous):

Sorry, "round to the nearest tenth". So it should be 87.9

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