Viviani's Theorem

The sum of the perpendicular distances from a point in or on an equilateral triangle is equal to the altitude of the triangle. Reference: Alsina, C. & Nelsen, R. B. (2010). Charming Proofs: A Journey Into Elegant Mathematics. The Mathematical Association of America: USA.


Alex Chik

Material Type
geometry  proof  triangle  exploration  viviani  altitude  equilateral-triangle 
Target Group (Age)
11 – 14
English (United Kingdom)
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