As

s=Θ.r

Then

Θ=s/r

and unit of s(arc) is cm & unit of r (radius) is also cm

so

Θ=cm/cm = 1

maens

Θ (angel) unit is WHAT? by this method........

plz... Give me satisfied ans.....

THe angle theta is in radians.Always in mathematics as u advance thru iit,u will notice tht the angle is in radians most of the times..

and not in degrees.

best of luck!!!!!

if u like my answer plz click yes by approving my answer.

plz..... give the satisfied answer which is only proved by this concept not any other ........