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Find the radius (to the nearest hundredths) of a circle with an area

Find the radius (to the nearest hundredths) of a circle with an area
    of 432 cm2

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Philip P. | Effective and Affordable Math TutorEffective and Affordable Math Tutor
5.0 5.0 (428 lesson ratings) (428)
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The area of a circle is given by:
 
Area = (pi)*(Radius2)
 
Where pi = 3.14159...  You need to solve for the Radius:
 
Area/pi = Radius2               [Divided both sides of the equation by pi]
 
√(Area/pi) = Radius            [Took the square root (√) of both sides]
 
Plug in the values for Area (432 cm2) and pi (3.14159) into the formula above to compute the value of the Radius.