Question

prove that equal chords of circle subtened equal angles at its centre
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Answer 1

What you need is in the page below.

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Answer 2

Answer:

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)