Explain why the hypotenuses of the triangles below have the same slope. https://static.k12.com/eli/bb/1459/3_86584/2_60467_18_86819/6b5d3f509811ed9944fffa38f5f5485d8f25ba88/media/f65786aa8edabbc018dd7be9f6edc664c2ce9db7/mediaasset_1504466_1.gif
because
* they are both a segment of the same line.
* the 2 triangles are similar: that is the sides are in the same ratio - one triangle is just an enlargment of the other one.
