What is the arc length with a central angle of 36 degrees and a radius of 15 cm?

Answer 1

The formula for the Circumference of a circle (note: central angle of 360°) is:

C = 2Πr

The full Circumference of this circle is 30Π.

Since the central angle is 1/10 th of the full circle, the arc is 1/10 th of 30Π.

The arc length is 3 Π cm. That is approximately 9.42 cm.