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Triangle Names and Angle Sum (Interior and Exterior)
Author:
Morton Betts
Topic:
Equilateral Triangles
,
Isosceles Triangles
,
Right Triangles
,
Scalene Triangles
,
Triangles
How to name triangles. The conditions for naming triangles. Proof the sum of interior (inside) angles = 180 deg. Proof the other two angles equal exterior angle.
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