Copy of Congruence Shortcuts

Look at the Side Angle Side Interactive above. In the upper right hand corner, slide the top grey button and notice what happens.

Now slide the pink button in between the two grey buttons located in the upper right hand corner of the interactive. What happens when you slide this button?

Now slide the bottom grey button located in the upper right hand corner of the interactive. What happens when you slide this button?

Locate the "Slide Me!" button in the bottom left hand corner of the interactive. What happens when you slide this button?

Change the measure of side segments a, b, and c by sliding the corresponding slide adjusters. Notice that any length change in a side segment on the pink triangle will be duplicated on the corresponding side segment in the empty triangle on the right. Stop at any length combination and click on the arrow next to the Slide Me! button. What happens

Click and slide the pink and blue sliders and notice what happens.

Does the measure of the segment between the two angles change at all?

What happens when I move the "Slide Me!" button?