The type of angles used to help prove that the sum of the measures of the interior angles of a triangle is always 180° are alternate interior angles. This is often demonstrated by drawing a line parallel to one side of the triangle and showing that the angles formed are congruent to the triangle's interior angles.
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°
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Responses
obtuse angles
obtuse angles
right angles
right angles
vertical angles
vertical angles
alternate interior angles
1 answer