[b]Be sure to move points C &/or A around after completing each step below.[/b] There is also a point to change the circle's radius (if you wish). [br][br]Instructions: [br][br]1) Construct radius AE & radius AD. [br]2) Find the measure of angle CEA & angle ADC.[br]3) Move point [color=#1551b5]C[/color] around. What do you notice about the two angle measures you obtained in the previous step? [br][br]YOU SHOULD NOW BE ABLE TO COMPLETE THE FIRST CONJECTURE IN YOUR NOTES.[br][br]4) Click on the red "[color=#c51414]Show Segments Tangent to Circle[/color]" icon. [br]5) Measure the lengths [color=#c51414]CE[/color] & [color=#c51414]CD[/color]. What do you notice? [br]6) Move point [color=#1551b5]C[/color] around. What do you notice about the lengths of the 2 [color=#c51414]tangent segments[/color] you obtained in the previous step? [br][br]YOU SHOULD NOW BE ABLE TO COMPLETE THE SECOND CONJECTURE IN YOUR NOTES.

Activity questions appear above the applet.