In the given figure, O is the centre of the circle.
If ∠AOB = 110° and ∠AOC = 80°, then ∠BAC = ?

1. 75°

2. 80°

3. 85°

4. 95°

In the given figure, O is the centre of the circle and ∠OPQ = 30°. Then, ∠PAQ = ?

1. 60°

2. 70°

3. 80°

4. 75°

In the given figure, ABCD is a cyclic quadrilateral. The measure of its greatest angle is :

1. 135°

2. 140°

3. 150°

4. 160°

In the given figure, O is the centre of the circle.
If ∠PQR = 35°, then ∠POR is equal to :

1. 17.5°

2. 35°

3. 60°

4. 70°