Yahoo Answers: Answers and Comments for Geometric Proof of Phythagorean Theorem? [Mathematics]
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From MVP_Shawol
enUS
Sat, 12 Nov 2011 23:02:42 +0000
3
Yahoo Answers: Answers and Comments for Geometric Proof of Phythagorean Theorem? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20111112230242AA8KI6v
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From sepia: http://mathandmultimedia.com/2010/02/03/pythag...
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Sun, 13 Nov 2011 08:07:03 +0000
http://mathandmultimedia.com/2010/02/03/pythagoreantheorem/

From Mein Hoon Na: proof can be found at http://www.mathsisfun.co...
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https://answers.yahoo.com/question/index?qid=20111112230242AA8KI6v
Sun, 13 Nov 2011 07:16:34 +0000
proof can be found at http://www.mathsisfun.com/pythagoras.html

From SH: agree with the above answer
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Sun, 13 Nov 2011 07:13:33 +0000
agree with the above answer

From Gendarmeriee: you can see all the proofs w/ description here...
https://answers.yahoo.com/question/index?qid=20111112230242AA8KI6v
https://answers.yahoo.com/question/index?qid=20111112230242AA8KI6v
Sun, 13 Nov 2011 07:08:05 +0000
you can see all the proofs w/ description here> http://www.jimloy.com/geometry/pythag.htm

From Jacke: We start with a right triangle with sides a, ...
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Sun, 13 Nov 2011 07:07:46 +0000
We start with a right triangle with sides a, b, and c. We then build a big square, out of four copies of our triangle. We end up with a square, in the middle, with sides c (we can easily show that this is a square).
We now construct a second big square, with identical triangles which are arranged as in the lower part of the diagram. This square has the same area as the square above it.
We now sum up the parts of the two big squares:
Area=2ab + c²
Area=2ab + a² + b²
These two areas are equal:
2ab + c²=2ab + a² + b²
c²=a² + b²