Perimeter to area

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

Correct answer:

S =  17.9049 m2

Step-by-step explanation:

o=15 m  o=πD=2 πr r=o/(2π)=15/(2⋅ 3.1416)≐2.3873 m  S=π⋅ r2=3.1416⋅ 2.38732=17.9049 m2

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