Question

Prove that equal chords of a circle subtend equal angles at the centre.​

Answer 1

ANSWER

In ΔAOB and ΔCOD,

AB=CD (Given)

AO=CO (radius)

OB=OD (radius)

By S.S.S congruency, ΔAOB≅ΔCOD

⇒∠AOB=∠COD.

Answer 2

Answer:

In ΔAOB and ΔCOD,

AB=CD (Given)

AO=CO (radius)

OB=OD (radius)

By S.S.S congruency, ΔAOB≅ΔCOD

⇒∠AOB=∠COD.

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