Question

An illustration shows a triangle with vertices labeled clockwise as upper A, upper B, and upper C, starting at the lower left vertex. A line with arrows at both ends is drawn above the triangle. Angles are marked with arcs.
What could be proved using the diagram?

(1 point)
Responses

the Pythagorean Theorem
the Pythagorean Theorem

Alternate interior angles are congruent.
Alternate interior angles are congruent.

Two lines are parallel if they have the same slope.
Two lines are parallel if they have the same slope.

the Triangle Angle Sum Theorem
the Triangle Angle Sum Theorem

Answer 1

Based on the description of the triangle and the line with arrows above it, it seems that the diagram is likely illustrating relationships involving angles, particularly concepts related to parallel lines and angles formed by transversals. Therefore, the most appropriate proof that could be derived from the given diagram is:

**Alternate interior angles are congruent.**

This is because the parallel line above the triangle would create alternate interior angles with the angles of the triangle. The other options do not directly relate to the visible elements described in the diagram.