Question

in the given figure O is the centre of circle if angle/_ BAC =X amd /_OBC=Y prove that X- Y= 90

Answer 1

To prove : x-y=90

In triangle OBC

OB=OC (radii of a circle)

Answer 2

Answer:

this is the answer to your question. I have just used another method without using reflex angle.

Step-by-step explanation:

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