Question

find: b for the following circle​

Answer 1

Answer:

75°

Step-by-step explanation:

The angle next to 120 will be 60° because of angle in a straight line is 180° always .

Now, look at the right ∆ :

Angle made by chord on the circumference is = 180°-(25+80)

= 180° - 105°

= 75°

So, b = 75° (angles by same chord are same)