Question

Find the length of the arc.
8 m
315°

Answer 1

`s = 44.0\:\text{m}`

Explanation:

First convert the angle into radian measure:

`315°×\left((\pi)/(180°)\right) = 5.50\:\text{rad}`

The arc length s is given by

`s = r\theta = (8\:\text{m})(5.50\:\text{rad}) = 44.0\:\text{m}`