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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