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Triangle Classification

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Triangle Classification
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Vocabulary

Acute Triangle

Acute Triangle

An acute triangle has three angles that each measure less than 90 degrees.
Interior angles

Interior angles

Interior angles are the angles inside a figure.
Isosceles Triangle

Isosceles Triangle

An isosceles triangle is a triangle in which exactly two sides are the same length.
Obtuse Triangle

Obtuse Triangle

An obtuse triangle is a triangle with one angle that is greater than 90 degrees.
Right Angle

Right Angle

A right angle is an angle equal to 90 degrees.
Scalene Triangle

Scalene Triangle

A scalene triangle is a triangle in which all three sides are different lengths.
Equilateral

Equilateral

A polygon is equilateral if all of its sides are the same length.
Equiangular

Equiangular

A polygon is equiangular if all angles are the same measure.

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