1·This article introduces the whole course of the demonstrating device of the pythagorean theorem with the glass plate .
介绍了用玻璃板制作勾股定理演示器的全过程。
2·And we learned how to prove the Pythagorean Theorem in Euclidean geometry, starting with the various axioms in Euclidean geometry, ba, ba-ba, ba-ba, ba-ba, ba bum.