Thread: Conjectures Inscribed Angles...

Hey guys I wondered if you could help me solve problem one.

BELOW IS PHOTO!

THANKS

simply use the Inscribed Angles Conjectures which says that the measure of the intercepted arc angle is twice that of the inscribed angle.
Thus a = 65

so number 2...well the line where the dot is is 180 degrees, so does that have anything to do it. still a little confused...

on number 2 is b= 30 degrees?

right

one quick one: so on problem 3, to get that you take 95(2) (thats 95 times 2) which would equal c+120 degrees. But why. Why times 2