why a^2 + b^2 = c^2 in right-angled triangle

Question

a^2 + b^2 = c^2

what is the demonstration of this rule with triangle which has 90 deg? can be proofed using geometry?

See http://math.stackexchange.com/questions/675522/whats-the-intuition-behind-pythagoras-theorem and http://math.stackexchange.com/questions/803/what-is-the-most-elegant-proof-of-the-pythagorean-theorem — JiK, Mar 27 '14 at 11:20

score -1 · Accepted Answer · answered Mar 27 '14 at 11:26

-1

Which notions of geometry can you recall for the demonstration?

Here you can find some different proofs of the Pythagorean Theorem.

answered Mar 27 '14 at 11:26

BowPark

It is not for Phythagore. It is for a Muslim man who is GHeyth Edin ELKASHI : http://en.m.wikipedia.org/wiki/Al-Kashi – Abdennour TOUMI Mar 28 '14 at 08:06

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