the pythagorean theorem is the pythagorean theorem.

the pythagorean theorem is an elementary geometry theorem. it is one of the important mathematical theorems discovered and proved by mankind in the early days. it is one of the most important tools for solving geometric problems using algebraic thinking, and is also one of the links between numbers and shapes. the pythagorean theorem is a special case of the cosine theorem. there are about 400 ways to prove the pythagorean theorem, which is one of the theorems with the most proof methods among mathematical theorems. "hook three strands, four strings and five" is the most basic formula of the pythagorean theorem. the pythagorean array equation a2 + b2 = c2 is the positive integer array (a, b, c). (3,4,5) is the pythagorean number. that is to say, assuming that the two right-angled sides of the right triangle are a and b, and the hypotenuse is c, then a2+b2=c2, that is, the sum of the squares of the two right-angled sides of the right triangle is equal to the square of the hypotenuse.

a^2 + b^2 = c^2