Play around with the points to see what happens to the angles.

Move C to create a angle. What is the measure of the other angle? What is the difference between the 2 angles? What do you notice between the difference and angle D?

Play around with the points to see what happens to the angles.

Move C to create a angle. What is the measure of the other angle? What is the difference between the 2 angles? What do you notice between the difference and angle D?

Play around with the points to see what happens to the angles.

Move C to create a angle. What is the measure of the other angle? What is the difference between the 2 angles? What do you notice between the difference and angle D?