Proclus' Ellipse Construction

This ellipse drawer would have been known to Proclus (418-485), who knew that an ellipse could be generated by tracing a point P inside a circle that rolls without slipping inside and tangent to another circle whose radius is twice as long.

 

gabriela sanchis

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Resource Type
Activity
Tags
conic  ellipse  proclus 
Target Group (Age)
14 – 18
Language
English (United States)
 
 
GeoGebra version
4.4
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946
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