Find the number of degrees in the measure of the vertex angle of an isosceles triangle if each base angle measures 36 degrees

The vertex angle measures 180 degrees

Step-by-step explanation:

Since this isosceles triangle gives us the base angles, we know that thee are two of that congruent angle. So the first two angles are 36 degrees. This means that since the angle measures all add up to 180 degrees, we can use subtraction to find the third angle, or the vertex angle.

36 + 36 = 72

180 - 72 = 108

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.