Question

A circular arc has measure 15m and is intercepted by a central angle of 78degree . Find the radius of the circle.

Do not round any intermediate computations, and round your answer to the nearest tenth.

Answer 1

`(78)/(360) = (15)/(2\pi * r)`

`78(2\pi * r) = 5400`

`r = (450)/(13\pi) = 11.0 \: meters`