Question

what is the Pythagoras property

Answer 1

according to Pythagoras property, the square of the hypotenuse (side opposite to 90 degree)is equal to the square of base + square of perpendicular. this property is given Pythagoras.

Answer 2

It states that the square of the hypotenuse i.e the sde opposite to the 90° is equal to the square of other two sides.
Let hypotenuse =AB
other side BC and AC.
Then
AB^2 =BC^2 + AC^2.
hope it helps.