|Tool: Ellipses: The Congruent Triangles Construction||
|Go to:||http://www.keypress.com/.../CongruentTriangles.zip (opens a new window)|
A pair of congruent triangles holds the key to this unusual Sketchpad ellipse construction. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the corresponding activity, as well as a second sketch for further exploration.
This is a free sample activity from Exploring Conic Sections with the Geometer's Sketchpad.
|Author:||Key Curriculum Press/Daniel Scher|
|Cost:||Does not require payment for use|
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|Activities:||Exploring Conic Sections with The Geometer's Sketchpad||Ellipses: The Congruent Triangles Construction|