Isosceles

7.3 Outline

1. Terminology
   1. six parts of a triangle
   2. classifying triangles
      1. by sides
         1. scalene
         2. isosceles
         3. equilateral
      2. by angles
         1. acute
         2. right
         3. obtuse
   3. congruent triangles
      1. construction
      2. corresponding parts
2. Angles of a triangle
   1. angles in a triangle
   2. exterior angle
   3. exterior angle property
3. Isosceles triangle