Question

complete this sentence with the best of the choices given. the measure of an exterior angle of a triangle is ________ the sum of the measures of the ________ remote interior angles. after you pick your answer press go. a b c d e complementary to; three

Explanation:

Step1: Recall exterior - angle theorem

The measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles. This is a well - known geometric theorem. There are only two remote interior angles for a given exterior angle of a triangle. For example, if we have a triangle $\triangle ABC$ and an exterior angle $\angle ACD$ (where $D$ is a point on the extension of side $AB$), then $\angle ACD=\angle A+\angle B$. So the first blank is "equal to" and the second blank is "two".

Answer:

equal to; two