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In the right triangle the biggest square has the exact same area as the other two squares put together!

 

 

Pythagoras

It is called "Pythagoras' Theorem" and can be written in one short equation:

a2 + b2 = c2

pythagoras squares a^2 + b^2 = c^2

 

 

abc triangle   a2 + b2 = c2

Practice 1

Practice 2