the egyptians used Pythagoras thereom before "Pythagoras" so called founded it.
yes
There are over 100 of them. They can be found at //www.cut-the-knot.org/pythagoras/
Pythagoras
sacred geometry
Democratic school.
A greek man called Pythagoras.
Pythagoras
If the 2 sides of a right angle triangle are known then the 3rd side can be found by using Pythagoras' theorem.
Pythagoras found out that if a triangle is right-angled then the hypoteneuse (long side) squared = the other 2 sides squared and added together
Pythagoras was interested in triangles when he found out that for any right angle triangle that when its hypotenuse is squared it is equal to the sum of its two squared sides.
Steps for this process can be found in related links.
If I recall it correctly Pythagoras found the when dealing with right angle triangles, the square on the hypotenuse equaled the sum of the squares on the other two sides.