Theorems on CIrcles-5

Circles Theorem – 4 – Line drawn from the centre of the circle to bisect the chord is perpendicular to the chord.

Circles Theorem – 3 – Perpendicular drawn from the centre of the circle to the chord bisects the chord

Circles Theorem-2 – If the angles subtended by the chords of a circle at the centre are equal, then the chords are equal