Question

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

Answer 1

Answer:

30 degrees because if the a and b is equal to 60 degree then see a and c will be half of it therefore it is 30 degree

Answer 2

Answer:

In triangle AOC

X+AOC+OCA=180°

AND ANGLE BOA=60°

now by using linear pair

Angle BOA+COA=180*

=. 60+COA=180

=. COA=120°

Now in triangle AOC again

Let,

Angle x =OCA= X (angle from same chord will be equal)

Now,

=. 2x+angle COA=180

=. 2X+120=180

=. 2x=60

=. X=30°

Hope it helps

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