prove that equal chords of circle subtened equal angles at its centre
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given- AB and CD are equal chords of the same circle with center at O.
- To Prove- angel AOB and angle COD
- proof- in triangle AOB and triangle COD.
- AO=CO (radii of the same circle)
- AB=CD (given)
- OB=OC (radii of the same circle)
Therefore, triangle AOB and triangle COD by S.A.S congruence rule.
so, angel AOB is equal to the angel COD.
(proved)
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