# Circle O has a radius of 10, how do you find the length of an arc subtended by a central angle measuring 1.5 radians?

##### 1 Answer

Aug 4, 2015

The arc has length of 15

#### Explanation:

This comes straight from the definition of radian.

1 rad is the measure of a central angle which has an arc of length equal to radius of the circle, so if the measure is 1.5 rad then the arc is 1.5r long, where r is the radius