Area of a circle

The circumference of the circle is 150.72 centimeters. Calculate the area of the circle.

Correct answer:

S =  1807.7 cm²

Step-by-step explanation:

$$\begin{gathered} o=150.72\text{ cm } \\ o=2\pi r \\ r=o\mathrm{/}(2\pi )=150.72\mathrm{/}(2\cdot 3.1416)\doteq 23.9878\text{ cm } \\ S=\pi \cdot r^2=3.1416\cdot 23.9878^2=1807.7{\text{cm}}^2 \end{gathered}$$

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