Question

If O is the centre of the circle, Find the value of x in given figure:
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Answer 1

Step-by-step explanation:

∠ACB=∠ADB (Angles in the same segment of a circle)

But ∠ADB=x ⇒∠ABC=xo

Now in ΔABC

∠CAB+∠ABC+∠ACB=180°

⇒40 °+90° +x °=180° (AC is the diameter)

⇒130°+x°=180°

⇒x°=180°−130°=50°