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Triangle
A polygon with three sides.
See
also
Equilateral triangle, equiangular triangle, isosceles triangle, scalene triangle, right
triangle, area of a triangle, base
of a triangle, height
of a triangle, semiperimeter, Heron's
formula, inradius,
incircle, circumcircle, trigonometry



this page updated
21feb16
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons 

