Question

Please answer help asap

Answer 1

`∠ACB=40°`

Explanation:

Given:-

`∠APB=80°`

According to question:-

`=>∠APB= 2×∠ACB`

[In Circle, the angle subtend at the centre is double angle subtend at the circumference.]

`=>80° = 2× ∠ACB`

`=>∠ACB=(80°)/(2)`

`=>∠ACB=40°`