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Geometry 4-2a GeoGebra Primer: SSS: Dynamic Proof

By Matthew Richardson

Last updated over 3 years ago

5 questions

Interact with the applet below for a few minutes, then answer the questions that follow. Feel free to move the BIG WHITE POINTS anywhere you'd like! Be sure to do this each time after resetting and before re-sliding the sliders!   

What does the left-most slider in the right sidebar corner control?

What does the middle slider in the right sidebar corner control?

What does the right-most slider in the right sidebar corner control?

What does the slider in the bottom left corner control?

What can you conlclude about triangles whose corresponding side lengths are congruent?