Question

What is the radius of a circle whose circumference is 207.24 inches ?

Answer 1

The circumference of the circle C = 207.24 inches.

The formula for the circumference of circle is,

`C=2\pi r`

Assume the value of pi be 3.14.

Substitute 207.24 for C in the formula to determine the radius of circle.

`\begin{gathered} 207.24=2\pi r \\ r\approx(207.24)/(2\cdot3.14) \\ =33 \end{gathered}`

Thus radius of circle is 33 inches.