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

Answer:
the angle is pi/4.
Step-by-step 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