What is the plane angle subtended by a circle at its center?

Asked by smitpranami | 6th Jul, 2016, 08:49: PM

Expert Answer:

The angle subtended by an arc of a circle at the centre of circle is called plane angle. 

begin mathsize 12px style Plane space angle space straight theta equals fraction numerator length space of space arc over denominator radius end fraction space equals straight l over straight r end style

The total plane angle subtended by a circle at its centre is 360º = 360 × (π/180) = 2π rad

Answered by Yashvanti Jain | 8th Jul, 2016, 11:22: AM