Exemplar Exercise Problems III — task. Mathematics CBSE, Class 9.

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1. In the figure, if \(AOB\) is a diameter of the circle and \(AC = BC\), then \(∠CAB\) is equal to:

\(90^º\)
\(60^º\)
\(30^º\)
\(45^º\)

2. In the figure, if \(∠OAB = 40^°\), then \(∠ACB\) is equal to :

\(60^°\)
\(40^°\)
\(70^°\)
\(50^°\)

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