Move point A, B or C to create any triangular shape.[br][br]1. DEF is similar to triangle ABC. What makes them similar?[br]2. Use point E to create create other triangles similar to triangle ABC. Observe what change and what does not change.
What do you notice about [math]\angle A[/math] and [math]\angle D[/math]?
What do you notice about [math]\angle B[/math] and [math]\angle E[/math]?[br]
What do you notice about [math]\angle C[/math] and [math]\angle F[/math]?[br]
What do you notice about the relationship between AB and DE; BC and EF; and AC and DF?
In similar figures, matching sides are ____________.
In similar figures, matching angles are ___________.