Question

1. options: parallel, perpendicular, skew, concurrent
2. if a line divides two ____ of a triangle proportionally, then it is parallel to the third side.

options: angles, rays, sides, vertices

Explanation:

This is related to the basic proportionality theorem (Thales' theorem) in geometry. The theorem states that if a line divides two sides of a triangle proportionally, then it is parallel to the third side. Angles, rays, and vertices do not fit this theorem's context.

Answer:

sides