Question

O is centre of cirlce, AC is diameter. what is the measure of theta​

Answer 1

Answer:

theta=x= <A= 30°

Step-by-step explanation:

OA=OB= radii

so <A=<B

let them x

so x+x+ 120°=180°

2x= 180°-120°

x=60°/2

x= 30°

theta=x= <A= 30°