Why Do Angles in a Triangle Add up to 180 Degrees?

Answer

Angles in a triangle add up to 180 degrees because, the top line that touches the top of the triangle runs parallel to the base of the triangle. Each of the angles can make a complete rotation from one side to the other and still end up with a sum of 180 degrees.
Q&A Related to "Why Do Angles in a Triangle Add up to 180 Degrees"
It is a consequence of Euclids's parallel postulate.
http://wiki.answers.com/Q/Why_does_a_triangles_ang...
4/17/96 at 19:16:32 From: Anonymous Subject: Geometry, angles in a triangle Hi! We were wondering why all the angles in a triangle add up to 180 degrees. Several of us are trying
http://mathforum.org/library/drmath/view/57727.htm...
The maximum angle is 360°.This is the angle all the way
http://www.chacha.com/question/why-do-all-the-angl...
A square sandwich, that you cut in half on the diagonal. Before it is cut, each corner of the square sandwich is 90 degrees. When it is cut, the corner is split in half, and half
http://answers.yahoo.com/question/index?qid=201310...
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