**Click on the links below to learn more about** classifying triangles by their angles and by their sides and how to calculate a missing third angle:

** Triangles Classified by Their Sides:**

**Link #1-AAAMath (interactive with score results)**

**Triangles Classified by Their Angles:**

**Link #1-AAAMath (interactive with score results)**

**Link #2-Math-Play Game**

** Both:**

**Link #1-Brainpop-Video**

**Link #2-FactMonster-Game**