Question

Two chords ab and ac of a circle subtend angles equal to 100 and 140 at centre . find angle bac if ab and ac lie on the opposite sides of the centre

Answer 1

refer the below link
Refer the following link:

https://www.meritnation.com/ask-answer/question/two-chords-ab-and-ac-of-a-circle-subtends-90-degree-and-150/circles/7206637