Perimeter to area

Calculate the area of a circle with the perimeter 15 meters.

Correct result:

S =  17.9049 m

Solution:

o=15 r=o/(2π)=15/(2⋅ 3.1416)≐2.3873 S=π⋅ r2=3.1416⋅ 2.38732=17.9049 m

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