The measure of a base angle of an isosceles triangle is more than twice the vertex angle. Find the measure of the base angle.
Step 1: Find the measure of the vertex angle.
An isosceles triangle has 2 base angles that are equal in measure.
Write an equation to show that the sum of the triangle's angle measure is . Let represent the measure of the vertex angle and represent the measure of each base angle. Solve for .
So, the vertex angle has a measure of .
Step 2: Find the measure of a base angle.