!!!!!!!!!! 100 POINTS !!!!!!!!!!!!

Attached is Euclid's proof of the Pythagorean theorem. Could anyone explain it, please? Particularly the first attachment - how did he derive those expressions from the triangles (e.g. AC / CD)?

100 POINTS Attached is Euclids proof of the Pythagorean theorem Could anyone explain it please Particularly the first attachment how did he derive those expres class=
100 POINTS Attached is Euclids proof of the Pythagorean theorem Could anyone explain it please Particularly the first attachment how did he derive those expres class=
100 POINTS Attached is Euclids proof of the Pythagorean theorem Could anyone explain it please Particularly the first attachment how did he derive those expres class=
100 POINTS Attached is Euclids proof of the Pythagorean theorem Could anyone explain it please Particularly the first attachment how did he derive those expres class=
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