Math Forum > Annie's GSP Activities > Types of Triangles > HTML handout

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Types of Triangles

  1. Drag each red dot ("vertex" or corner) to change the triangles. You will notice that they change in different ways. Be sure to drag every vertex!

    As you are dragging, fill out this chart.

    Triangle What do you notice about
    the lengths of the sides?
    What do you notice
    about the angles?
  2. You can move the blue and purple triangles so that their vertices match up and the two triangles lie on top of each other (try it!). This is marked on the chart below by the Y. Mark Y or N in each box of the chart to show whether the other pairs can match up.

    Purple Y  

  3. Which triangle is your favorite? Why?



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