Answer:
[tex]∠ACB=40°[/tex]
Step-by-step explanation:
Given:-
[tex]∠APB=80°[/tex]
According to question:-
[tex]=>∠APB= 2×∠ACB[/tex]
[In Circle, the angle subtend at the centre is double angle subtend at the circumference.]
[tex]=>80° = 2× ∠ACB[/tex]
[tex]=>∠ACB=\frac{80°}{2}[/tex]
[tex]=>∠ACB=40°[/tex]
