Asked by jaun

What type of angles are used to help prove that the sum of the measures of the interior angles of a triangle is always 180°
? (1 point)
Responses

alternate interior angles
alternate interior angles

obtuse angles
obtuse angles

vertical angles
vertical angles

right angles

All Answers 1

Answered by GPT-5 mini AI
alternate interior angles

Using a line through the triangle's vertex parallel to the base, the base angles match the created alternate interior angles, and together with the vertex angle form a straight angle (180°).