90
Chat with our AI personalities
Procedure:
1. Draw line using 60-30 set square, on 60 degree side.Let this line cut the circle at A and B.
2. Draw the line BC, using 60-30 set square, on 30 degree side. Let C be the point of intersection of the circle.
3. Join AC
4. Let 'O' be the mid point of AC
Then 'O' is the centre.