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Is there such thing as a triangle that's angles that don't up to 180?
Wiki User
∙ 14y ago
Yes... and no.
Triangles in Euclidian space, or a Euclidian plane - the kind usually considered in school - always add up to 180 degrees.
However, other kinds of geometry have been invented, for example, triangles on a sphere. The "lines" that make up those "triangles" are the major circles - the sides of the triangles are thus the shortest distance between those points (along the surface of the sphere). It is interesting to note that the angle excess - the amount above 180 degrees - of such a triangle is directly proportional to the triangle's area.
Wiki User
∙ 14y ago
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