the total amount of degrees in the center is 360 degrees if all five vertex angles meeting the center are congrent what is the measure of a base angle of one of the triangles
A) 54 degrees
B) 72 degrees
C) 108 degrees
D) 144 degrees
The answer to this question is B)72, all you have to do is divide 360 by how many sides there are and there happen to be five of them and when you divide you get 72 as your answer.