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 Related Terms
 Right Triangle:  A triangle with exactly one right angle.
Scalene Triangle: A triangle with no equal sides.
Isosceles Triangle: A triangle with at least two sides having equal lengths.
Equilateral Triangle: A triangle with three equal sides.
Right Angle: An angle that measures exactly 90 degrees.
Acute Triangle: A triangle with three acute angles.
Equiangular Triangle: A triangle with equal angles
Obtuse Triangle: A triangle with one obtuse angle.