Question

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

Answer 1

Step-by-step explanation:

angle subtended by an arc at the centre is twice the angle subtended by the same arc at any other point on the circle

here angle subtended by arc BC at the centre is 130°.

therefore x = 130°/2 = 65°

Answer 2

Step-by-step explanation:

Hope you understand it......