Question

which statement regarding the interior and exterior angles of a triangle is always true? an exterior angle is supplementary to the adjacent interior angle. an adjacent interior angle is supplementary to a remote interior angle. a remote interior angle is congruent to the exterior angle. an exterior angle is supplementary to a remote interior angle.

Explanation:

By the definition of adjacent angles on a straight - line formed by an exterior angle of a triangle and its adjacent interior angle, they are supplementary. An adjacent interior and a remote interior angle are not supplementary. A remote interior angle is not congruent to the exterior angle. An exterior angle is not supplementary to a remote interior angle.

Answer:

An exterior angle is supplementary to the adjacent interior angle.