Question

PLEASE HELP!!!

ACE is an isosceles triangle. What is the measure of the vertex angle? ​

Answer 1

30 degrees

Explanation:

all angles in all triangles total 180*

each base angle of an isosceles triangle equals 75*

since 75* + 75* = 150*

150* of the triangle are accounted for

Since 180* - 150* = 30* then the vertex angle should be 30* so that the angles of the triangle are all equal