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It has become obvious that the Shapes category was in way over its head with all sorts of geometrical problems. So, the hard-core Geometry problems will now reside here, where they will fit in much better.
Given a triangle ABC.
Let Ha, Hb, and Hc be the altitudes to its sides a,b, c,respectively.
Prove:
Ha + Hb > Hc

Is it possible to construct a triangle with altitudes 7,11, and 20?
Justify your answer.

(No Solution Yet, 2 Comments) Submitted on 2017-03-11 by Ady TZIDON   
Page 2 of 35   << prev next >>    
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