A radian is the measure of the central angle of an arc of a circle whose length is equal to the

one-third of radius of the circle

A radian is the measure of the central angle of an arc of a circle who

1.	A radian is the measure of the central angle of an arc of a circle whose length is equal to the
A.	half of radius of the circle
B.	diameter of circle
C.	radius of the circle
D.	one-third of radius of the circle
Answer» D. one-third of radius of the circle