We can find the center of a circle using a set square by following the mentioned steps.

**Step I:** Place the perpendicular vertex on any part on the circumference of the circle.

**Step II:** Draw rays along the perpendicular sides of set square such that it intersects the circle at A and B.

**Step III:** Draw the mid point O of AB. Now O is the required center.

Posted by Aakash Sharma(MeritNation Expert)on 9/5/12

*This conversation is already closed by Expert*