Question

In figure ,O is the centre of the circle. Find the value of X.

Answer 1

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Answer 2

Answer:  The answer is 90°.

Step-by-step explanation:  As given in the figure, 'O' is the centre of the circle. So, AC and BD will be the two diameters.

We know from geometry that the angle subtended by the diameter on the circumference of a circle is a right angle.

Here, 'X' is the measure of ∠BCD, which is subtended by the diameter BD on the circumference at the point 'C'.

So, m∠BCD = X = 90°.

Thus, the answer is 90°.