Question

The radius of a circle is 4 meters. What is the angle measure of an arc ​ meters long?

=​ m
r=4 m

Answer 1

the angle is pi/4.

Explanation:

Formula for Arc length in radians = rx, where is the radius of the circle and x is the angle

t = pi = arc length

r = 4

hence pi = 4x

angle = x = pi/4