In China, Shang Gao put forward a special case of the Pythagorean theorem of "three shares, four mysteries and five". In the west, the Pythagorean school of ancient Greece in the 6th century BC first proposed and proved this theorem. He proved by deduction that the square of the hypotenuse of a right triangle is equal to the sum of the squares of two right angles.

There are about 500 ways to prove Pythagorean theorem, and Pythagorean theorem is one of the most proven theorems in mathematics. Pythagorean theorem is one of the important mathematical theorems discovered and proved by human beings in the early days. It is one of the most important tools to solve geometric problems with algebraic ideas, and it is also one of the ties of the combination of numbers and shapes.

The proof of extended data 1 and Pythagorean theorem is the beginning of demonstrating geometry;

2. Pythagorean theorem is the first theorem in history that connects numbers with shapes, that is, the first theorem that connects geometry with algebra;

3. Pythagorean theorem led to the discovery of irrational numbers and the first mathematical crisis, which greatly deepened people's understanding of logarithms;

4. Pythagorean theorem is the first indefinite equation in history to give a complete solution, which leads to Fermat's last theorem;

5. Pythagorean theorem is the basic theorem of Euclidean geometry and has great practical value. This theorem is not only a dazzling pearl in geometry, but also widely used in advanced mathematics and other scientific fields. 1971May 15, Nicaragua issued a set of stamps entitled "Ten Mathematical Formulas for Changing the World". These ten mathematical formulas are all selected by famous mathematicians, and Pythagorean theorem is the first one.

References:

Baidu encyclopedia-Pythagorean theorem