quiz on 4.1-4.3

Question 1

Triangle sum theorem

Answer 1

the sum of the measures of the interior angles is 180

Question 2

exterior angle theorem

Answer 2

the measure of an exterior angle of a triangle is equal to the sum of the two non-adjacent interior angles

Question 3

corollary to the triangle sum theorem

Answer 3

the acute angles of a right triangle are congruent