Question

prove that equal chords of a circlesubstend equal angle at the center​

Answer 1

Step-by-step explanation:

In ΔAOB and ΔCOD,

AB=CD (Given)

AO=CO (radius)

OB=OD (radius)

By S.S.S congruency, ΔAOB≅ΔCOD

⇒∠AOB=∠COD.