Q. 14.3( 349 Votes )

# Recall that two c

Answer :

A circle is a collection of points which are equidistant from a fixed point. This fixed point is called as the centre of the circle and this equal distance is called as radius of the circle.

And thus, the shape of a circle depends on its radius. Therefore, it can be observed that if we try to superimpose two circles of equal radius, then both circles will cover each other In ΔAOB and ΔCO'D

AB = CD (Chords of same length)

OA = O'C (Radii of congruent circles)

OB = O'D (Radii of congruent circles)

ΔAOB ΔCO'D (SSS congruence rule)

AOB = CO'D (By CPCT)

Hence, equal chords of congruent circles subtend equal angles at their centers

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