Casey, Stephen, "The converse of the theorem of Pythagoras", 92, July 2008, 309—313 | 1 Books I and II |
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A rather extensive discussion of the origins of the various texts in the Zhou Bi is provided by Christopher Cullen 2007 | The theorem has been proven numerous times by many different methods—possibly the most for any mathematical theorem |
A typical example where the straight-line distance between two points is converted to curvilinear coordinates can be found in the.
1During the 202 BC to 220 AD , Pythagorean triples appear in , together with a mention of right triangles | Since AB is equal to FB, BD is equal to BC and angle ABD equals angle FBC, triangle ABD must be congruent to triangle FBC |
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A primitive Pythagorean triple is one in which a, b and c are the of a, b and c is 1 | This shows the area of the large square equals that of the two smaller ones |