Properties of Similar Triangles
Move point A, B or C to create any triangular shape.
Triangle DEF is similar to triangle ABC.
What makes them similar?
Use point E to create create other triangles similar to triangle ABC.
What do you observe is changing? Not changing?
Write out the measures of the following: angle A angle D angle B angle E angle C angle F AB DE AC DF BC EF
What do you notice about the angle measures?
Do you notice anything about the lengths of the sides?