Question

if A,B,C are3 points on a circle such that AB=BC=CA &O is the centre of the circle,then find the angle subtended by the AB,BC,CA at the centre O

Answer 1

∵equal chords subtend equal angles at the centre 
∴the angles subtended by AB, BC and AC are equal

∠AOB=∠BOC=∠COA=120°.

Answer 2

Answer:

Step-by-step explanation:

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