SSAT Upper Level Math : How to find if acute / obtuse triangles are congruent

Study concepts, example questions & explanations for SSAT Upper Level Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #531 : Geometry

If the vertex angle of an isosceles triangle is 30 degrees, what is the value of the angle that is exterior to one of the base angles?

Possible Answers:

Correct answer:

Explanation:

First, you subtract one angle so . Because there are 2 base angles you divide that value by 2 to get 75 Degrees. The exterior angle and the base angle are supplementary angles so .

Learning Tools by Varsity Tutors