equilateral triangle - all sides are the same length, isosceles triangle - 2 sides are the same length, scalene triangle - a triangle in which all 3 sides are different lengths, acute triangle - all 3 angles are acute angles (less than 90*), obtuse triangle - one angle is obtuse (measures greater than 90*), right triangle - one angle is a right angle (measures 90*), vertex - A point where two or more line segments meet. A corner., degree - unit of measure for angles, line segment - a part of a line bounded by a point at each end,

Classifying Triangles-MSES

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