Geometry
Congruent triangles

Congruence and isosceles and equilateral triangles

  1. Congruent legs and base angles of Isosceles Triangles
  2. Equilateral Triangle Sides and Angles Congruent
  3. Equilateral and Isosceles Example Problems
  4. Triangle types
  5. Triangle angles 1
  6. Another Isosceles Example Problem
  7. Example involving an isosceles triangle and parallel lines
  8. Figuring out all the angles for congruent triangles example
  9. Basic Triangle Proofs Module Example
  10. Basic Triangle Proofs Module Example 2
  11. Basic triangle proofs
  12. Fill-in-the-blank triangle proofs example 1
  13. Fill-in-the-blank triangle proofs example 2
  14. Fill-in-the-blank triangle proofs
  15. Wrong statements in proofs example 1
  16. Wrong statements in triangle proofs
  17. Problem involving angle derived from square and circle

Basic triangle proofs 1 and 2-step triangle congruency proofs.