Pythagoras' Theorem
2011-11-03 14:25
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转自：http://www.mathsisfun.com/pythagoras.html
If the triangle had a right angle (90°) ...
... and you made a square on each of the three sides, then ...
... the biggest square had the exact same area as the other two squares put together!
It is called "Pythagoras' Theorem" and can be written in one short equation:
If the triangle had a right angle (90°) ...
... and you made a square on each of the three sides, then ...
... the biggest square had the exact same area as the other two squares put together!
It is called "Pythagoras' Theorem" and can be written in one short equation:
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