Question

A triangle is shown with a line extending from the bottom left point 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.

Answer 1

Answer: An exterior angle is supplementary to the adjacent interior angle

Explanation:

Answer 2

An exterior angle is supplementary to the adjacent interior angle

Explanation:

A linear pair of angles is supplementary, so the exterior angle is supplementary to the adjacent interior angle.

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Since the sum of interior angles is (also) 180°, the exterior angle is equal to the sum of the remote interior angles. However, the other answer choices here just involve on remote interior angle, so are nonsense.