Question

1. Recall that two circles are congruent if they have the same radii Prove that equal
chords of congruent circles subtend equal angles at their centres.​

Answer 1

Answer

per the theorem; equal chords (of a circle) subtend equal angles at the centre. Hence, it is clear that equal chords of congruent circles would subtend equal angles at their centres.

This is same as the previous question. The theorem says that if two chords subtend equal angles at centre then the chords are equal. Hence, if two chords in two congruent circles subtend equal angles at their centres then the chords are equal.