The vertex angle of an isosceles triangle is 110 degrees. What are the measures of the base angles?
choose the correct answer
30 and 40 degrees.
35 and 35 degrees.
55 and 55 degrees.
60 and 10 degrees.
The base angles of an isosceles triangle are always congruent. Therefore, if the vertex angle is 110 degrees, then the base angles are also 110 degrees.
Therefore, the correct answer is:
55 and 55 degrees.