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Congruence rules SSS, ASA, SAS, SSAo [Home] [Search] [Forum] [Links] [Contact] [Imprint] [Sitemap]
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Congruence rules SSS When several triangles have the same side lengths (of all three sides), then they are congruent. Congruities are forms, that when they are mirrored, moved or turned, can be imaged by each other. (Same side lengths, same angles, same area).
If all sides are the same length, there are only two possibilities to fold the sides of a triangle. And these triangles are congruent afterwards also.
Congruence rules ASA When several triangles have the same length on one side and the same size of adjacent angles, then they are congruent. Congruence rules SAS When several triangles have two sides that are the same length and are standing in a specific angle to each other, they are also congruent. Congruence rules SSAo When several triangles have the same lengths on two sides and have the same amount of angle degrees as the longer side that lies opposite, then they are congruent.
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