The Pythagorean Theorem.
Title of the Pythagorean Proofs. 

Pythagorean Theorem using Classic Chinese Source
The Pythagorean Theorem using a proof based on a classic Chinese source. 

Chinese proof of the Pythagorean Theorem
Proof based on a chinese source. 

Completing the Square Proof
Proof by Completing the square. 

Islamic Proof of the Pythagorean Theorem
Proof of the Pythagorean Theorem based on the proof of an Islamic Mathematician. 
