1.

Prove that if chords of congruent circles sublend equal angles at the centre then chords are equal.

Answer»

If the radius of two circles is equal then they are called congruent.So in given figureIn triangle ABO & PQOOA=OP(radii) Angle AOB=Angle POQ(given) OB=OQ(radii)By SASTriangle ABO Is congruent to PQOBy CPCTAB=PQHence, proved



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