Mathematics: What is the area of the circle with a circumference of 87.92 cm using *3.14 for *symbol*

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What is the area of the circle with a circumference

quinnie48

25.01.2022

615.44 cm^2

Step-by-step explanation:

Formula for the area of a circle is: $A=\pi r^2$

We need to find the radius using our circumference formula and solving for r;

$Formula: C=2\pi r$

$r=\frac{C}{2\pi}$

$r=\frac{87.92}{2(3.14)} \\r=14cm$

Now that we've found the radius, replace it into the formula for the area.

$A=\pi r^2\\A= (3.14)(14)^2\\A=615.44cm^2$

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