Turning Triangles

Problem | Hint | Solution | Printable page |
Stage: 3 Challenge Level: Challenge Level:1

A triangle ABC resting on a horizontal line is "rolled" along the line. Describe the paths of each of the vertices and the relationships between them and the original triangle.

Describe what happens if the triangle is not equilateral and explain the outcomes you see.

Here are two examples for you.

Right Angle Triangle:

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Equilateral Triangle:

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You might also like to look at the related problem How Far Does it Move?

Published September 2002.