Equal chords of a circle subtend equal angles at the centre.

Theorem:-1If two arcs of a circle are congruent; the corresponding chord are equal and Equal chords of a circle substends equal angles at the centre.

prove that the line joining the mid-point of two equal chords of a circle subtends equal angles with the chord.

prove that the line joining the mid-point of two equal chords of a circle subtends equal angles with the chord.

Equal chord of circle subtends equal angle on centre.

Fill in the Blanks: Equal arcs of a circle subtend_____ angles at the centre.

Prove Equal chords of congruent circles subtend equal angles at the centre.

Equal chords of congruent circles subtend equal angles at the centre.

Equal chords of congruent circles subtend equal angles at the centre.

r : Two chords of a circle subtend equal angles at centre if and only if they are equal. Statement r can be interpreted as