Question

what is phythagorus theorm

Answer 1

In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. 

Answer 2

Pythagoras theorem tells that the square of the hypotenuse is equal to the sum of the squares of other 2 sides.
AB^2+BC^2=AC^2