Basic Proportionality Theorem

This outlines the proof of the basic proportionality theorem: If line DE intersects AB at D abd BC at E with DE parallel to AC, then BD/DA = BE/EC.
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Thomas E. Cooper —

 
Resource Type
Activity
Tags
basic  proof  proportionality  theorem  triangles 
Target Group (Age)
19+
Language
English (United States)
 
 
GeoGebra version
4.2
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1765
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License
CC-BY-SA, GeoGebra Terms of Use
 

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