In the given figure, AB is the diameter of the circle. Find the value of x.
30∘
45∘
60∘
90∘
An angle formed by the diameter of a circle at its circumference equals 90∘.Hence, the value of x is 90∘.
In the given figure, BOC is a diameter of a circle and AB=AC. Then, ∠ABC=?
(a) 30∘
(b) 45∘
(c) 60∘
(d) 90∘
In the given figure, AOB is a diameter of a circle and CD||AB. If ∠BAD=30∘ then ∠CAD=?
(b) 60∘
(c) 45∘
(d) 50∘