Look at the triangles below. Click on the vertices to move them around. Write down your observations.
1. What are the differences between these triangles and the other ones? 2. What do you notice about the angles in the two triangles when moving the vertices around? 3. What do you notice about the sides in the two triangles when moving the vertices around? 5. Based on all your discovers, is there any other way we can say triangles are similar other than the way we know right now?