How many parallel sides does a triangle have?

A triangle can never have any parallel lines because there must be three angles that add up to 180 degrees, which makes it impossible for the three sides to avoid intersecting. A parallel line can never intersect with another, and triangles must always have intersecting sides. read more

A triangle, in standard 2 dimensions cannot have any parallel sides. Let's show without going into formal proof. Let's say that you try to make a triangle with 2 parallel sides. read more

Start studying Polygons and Quadrilaterals. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more