## Most recent change of Altitude

Edit made on August 13, 2011 by ColinWright at 17:18:49

~~Deleted text in red~~
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Inserted text in green

~~WW~~ WM

HEADERS_END

A line segment from a vertex of a triangle meeting the opposite side at right angles.

Imagine a triangle sitting upright on one of its sides.

The altitude is then the "height" of the triangle.