[br]1. Click and drag the vertices of the triangle to create different angles for angle A, angle B, and angle C.  [br][br]2. Fill in the angles for each in the table below and find the sum of the angles in the last column.[br][br]3. What do you observe about the sum of the three angles within a triangle no matter what they are set to?[br][br]4. Click and drag the sliders to rotate the vertices. [br][br]5. Draw the result [br][br]6. What do you observe about the triangle's three interior angles when the sliders are set to 180?