[color=#000000]This applet accompanies the [/color][i][color=#0000ff]Right Triangle Trigonometry: Intro[/color][/i][color=#000000] activity packet you received at the beginning of class today. Use this applet to help you complete the guiding questions in this activity. [/color]

[color=#980000][b]Key Question: [/b][/color] [br][br][color=#000000]Hopefully, you noticed that when you keep the blue angle fixed and move only the white vertices, the value of each ratio never changes (even though the side lengths do)! [/color][color=#ff00ff][i]Why does this occur? [/i] Explain! [/color]

The applet below provides an introduction as to how we label the legs of a right triangle with respect to ONE of its acute angles. (Notice angle A, B, A', and B' are acute angles of a right triangle.) [br][br]The triangles shown below are similar triangles. Can you explain why?

1) How would you describe the hypotenuse of a right triangle? What is it? How do you easily find it? [br][br]2) How, within a right triangle, would you be able to identify an acute angle's OPPOSITE LEG? [br][br]3) How, within a right triangle, would you be able to identify an acute angle's ADJACENT LEG?