Question

mAC=60 degrees. What is the degree measure of 13 years ago

Answer 1

do I just sub. 180 from 60 ?

Answer 2

The inscribed angle is 1/2 its arc

Answer 3

if you join the centre (call it O) and C the angle subtended at the centre is equal to the angle subtended by the arc.

then use angle at the centre is half the angle at the circumference standing on the same are

so m<ABC = 1/2 m<AOC

Answer 4

oops should say standing on the same arc

Answer 5

break it down for me please because I don't get what you mean by m<AOC

Answer 6

half of 60 .answer is 30
If angle is 4m centr then its equal to arc angle

Answer 7

call the centre of your circle O....

then joining the centre and the point C you have a segment OC...

then you have an angle at the centre of the circle and an angle B on the circumference that are standing on the same arc.

and the theorem says.." the angle at the centre is double the angle at the circumference standing on the same arc".....

so if the angle at the centre is 60 the angle at the circumference is 30