Question

In a circle of radius 27, find the length of the arc spanned by a central angle of pi/4 radians. Round your answer to 2 decimal places. Use 3.1416 as an approximation for pi.

Answer 1

To find the arc length, we just need to multiply the central angle by the radius.

$L=\frac{\pi}{4}\times27=21.2058\approx21.21$

The arc length is equal to 21.21 units.