Proof Without Words: Pythagorean Theorem via Ptolemy’s Theorem

2017 ◽  
Vol 90 (3) ◽  
pp. 187-187
Author(s):  
Nam Gu Heo
1986 ◽  
Vol 17 (5) ◽  
pp. 422
Author(s):  
Michael Hardy
Keyword(s):  

2007 ◽  
Vol 91 (520) ◽  
pp. 128-131
Author(s):  
Gyula Darvasi
Keyword(s):  

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