BC is a chord of a circle with centre O. A is a point on major arc BC. Find the total measure of \[\angle BAC\]and \[\angle OBC\]

BC is a chord of a circle with centre O. A is a point on major arc BC.

1.	BC is a chord of a circle with centre O. A is a point on major arc BC. Find the total measure of \[\angle BAC\]and \[\angle OBC\]
A.	\[90{}^\circ \]
B.	\[100{}^\circ \]
C.	\[120{}^\circ \]
D.	\[150{}^\circ \]
Answer» B. \[100{}^\circ \]

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BC is a chord of a circle with centre O. A is a point on major arc BC. Find the total measure of \[\angle BAC\]and \[\angle OBC\]

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