Lesson 8.3 Concept: How to classify triangles by their sides and angles. An equilateral triangle has three sides of the same length. An isosceles triangle has a least two sides of the same length. A scalene triangle has three sides of different lengths

An acute triangle has three acute angles (less that 90 0 ). A right triangle has one right angle. (90 0) An obtuse triangle has one obtuse angle (more that 90 0)

Classify each triangle Obtuse, Scalene Acute, Isosceles Acute, Equilateral