Question

If O is the centre of the circle, find the value of x in the following figure​

Answer 1

Answer

Step-by-step explanation:

Angle apc+angle abc=180°

60°+angle abc=180°

angle abc=180°-60°=120°

Then, angle abc+angle DBC=180°

120°+angle DBC=180°

angle DBC=180°-120°=60°