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#1 2012-11-09 12:20:57
- Bosworth.Joshua
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Teach Pythagorean Theorem in 10 seconds
Everyone knows A²+B²=C², but this is often taught without any explanation as to why.
I'm not an established user yet (no link posting) so
[Thanks to the admin for posting the animation!]
Last edited by Bosworth.Joshua (2012-11-09 12:55:42)
#2 2012-11-09 12:41:55
- bobbym
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Re: Teach Pythagorean Theorem in 10 seconds
I have posted the animation here.
That is the best I can do to just keep the math and leave out the strong comments.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#3 2012-11-09 12:57:07
- Calligar
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Re: Teach Pythagorean Theorem in 10 seconds
Very interesting...
Life isn’t a simple Math: there are always other variables. -[unknown]
But Nature flies from the infinite, for the infinite is unending or imperfect, and Nature ever seeks an end. -Aristotle
#4 2012-11-23 08:23:52
- mathgogocart
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Re: Teach Pythagorean Theorem in 10 seconds
Intresting stuff
woosh! woosh! bye as I go to Kanto.
#5 2012-11-23 19:46:48
- bob bundy
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Re: Teach Pythagorean Theorem in 10 seconds
hi Bosworth.Joshua
Neat animation, thanks! 
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#6 2013-01-07 12:48:27
- 21122012
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Re: Teach Pythagorean Theorem in 10 seconds
"The conditions imposed on functions, become a source of difficulties which will manage to be avoided only by means of new researches about the principles of integral calculus"
Thomas Ioannes Stiltes. ... I made it!
#7 2013-01-09 02:14:44
- Fistfiz
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Re: Teach Pythagorean Theorem in 10 seconds
Hi there! These are very simple and smart proofs. I suggest you also to give a look to:
http://farside.ph.utexas.edu/euclid/Elements.pdf
Book1, Prop.48, Prop.49
the second one (if i remember good) is the Inverse theorem (i.e. if a triangle is such that c²=a²+b², then it's rectangle).
30+2=28 (Mom's identity)
#8 2013-01-09 05:59:29
- bob bundy
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Re: Teach Pythagorean Theorem in 10 seconds
hi Fistfiz
Thanks for that link. That brings back memories. I had to learn that proof many, many years ago.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#9 2013-01-09 07:19:43
- Fistfiz
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Re: Teach Pythagorean Theorem in 10 seconds
You're welcome.
30+2=28 (Mom's identity)