Conch diagram: Using Pythagorean theorem to make line segments with the length of 1, 2, 3, 4, 5. 1, 12345 Excellent Courseware Mathematical Conch Diagram: Using Pythagorean Theorem to make line segments with the length of 1, 2,3,4,5.
Pythagorean theorem is a basic geometric theorem, which means that the sum of the squares of two right angles of a right triangle is equal to the square of the hypotenuse.
In ancient China, right-angled triangles were called Pythagorean Theorem, the smaller right-angled side was a hook, the other longer right-angled side was a chord, and the hypotenuse was a chord, so this theorem was called Pythagorean Theorem, and some people called it quotient height theorem.