Watch the explanation & proof of the following theorems:

1. Equal chords are equidistant from the centre
2. The chords which are equidistant from the centre are equal
3. how to draw a circle from three non-collinear points
4. There is one and only one circle which passes through three non-collinear points
5. If two chords of a circle are equal then the corresponding arcs are congruent
6. If two arcs of a circle are congruent then the corresponding chords are equal.