Question

please answer me fast. It's emergency please please.
In the given figure, O is the centre and angle BDC=42°. Then angle ACB is equal to?

Answer 1

angle is equal to 45°

Answer 2

Answer....

Angle bdc=angle bac=42

(Angles in same segment)

In triangle ABC

Angle abc=90 (angle in semi circle)

42+90+angle Acb =180

Angle acb =180-132

=48