Question

The measure of a base isosceles triangle is 43? what is the measure of the vertex angle

Answer 1

The vertex angle is 94 degrees

Explanation:

Let the vertex angle be x

Mathematically, the base angles of an isosceles triangle are the same

So if one of the base angles is 43 degrees, then the other base angle would be 43 degrees too

Mathematically, the sum of angles in a triangle is 180 degrees

Thus;

43 + 43 + x = 180

x = 180-86

x = 94 degrees