Question

The radius of a circle is 15 what is the length of an arc that subtends an angle of Pi radians

Answer 1

The arc length of a circle is calculated by the formula

`s=\theta\cdot r`

replace the values of the angle and the radius into the formula

`\begin{gathered} s=\pi\cdot15 \\ s=15\pi \end{gathered}`

the arc length of the arc that subtends an angle of pi is 15pi.