Tony Foster's Proof of Viviani's Theorem

What Might This Be About?

23 February, 2017, Created with GeoGebra

Viviani's Theorem

The sum of distances of a point inside an equilateral triangle or on one of its sides equals the length of its altitude.

Viviani's theorem

The theorem is named after Vincenzo Viviani (1622-1703).

Proof

Tony Foster's Proof of Viviani's Theorem

Acknowledgment

The above is a slight modification of Tony Foster's proof of Viviani's theorem.

 

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