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Proof without Words: Viviani's Theorem

In an equilateral triangle, the sum of the distances from any interior point to the three sides is equal to the altitude of the triangle.
Old Node ID: 
3457
MSC Codes: 
97G40
Author(s): 
Ken-ichiroh Kawasaki (Nara University of Education Japan)
Publication Date: 
Tuesday, March 23, 2010
Original Publication Source: 
Mathematics Magazine
Original Publication Date: 
June, 2005
Subject(s): 
Geometry and Topology
Plane Geometry
Triangles
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Publish Page: 
Furnished by JSTOR: 
Rating Count: 
5.00
Rating Sum: 
15.00
Rating Average: 
3.00
Applicable Course(s): 
4.9 Geometry
Modify Date: 
Tuesday, March 23, 2010
Average: 3 (5 votes)

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