Question

please solve this question.

Answer 1

measure angle C equals to 90 because the points lying on same circle are called concyclic points it at any point on the remaining part of the circle angle in a semicircle is right angle because it is a other point C and ABC are concyclic points

Answer 2

Answer: is 30 °

Step-by-step explanation:

In triangle AOB

AO=OB=AB

SO triangle AOB is equilateral triangle.... so angle AOB = 60°

[ According to Theorem]

Angle ACB = 60°/2

= 30°

hope this helps you