Lesson 3: Classifying Triangles

Objective: Classify triangles as acute, right, or obtuse, scalene, isoceles, or equilateral.
Review these terms:

triangle right triangle acute triangle

obtuse triangle equilateral triangle isosceles triangle scalene triangle

Read and understand the descriptions and examples at this site:
Three-sided Shapes Triangles
Complete the following activities at this site:
Scalene Equilateral Isosceles
These sites will check your understanding of triangle classification:
Triangle Quiz Identifying Types of Triangles by Angles Identifying Triangles by their Sides
Geometry Table of Contents | Mrs. Dell Home

triangle	right triangle	acute triangle
obtuse triangle	equilateral triangle	isosceles triangle	scalene triangle