If (in radians) is a central angle in a circle with radius
, then the length of the arc cut off by
is
.
Find the radius of the circle.
\Central angle and
m. \ \
Convert the angle into radians.
\.
Consider .
Substitute the values of and
in above formula.
Thus, the radius of the circle is 0.5 m.
\The radius of the circle is 0.5 m.