Which best summarizes the Pythagorean Theorem? A- The sum of the squares of the lengths of the legs of a right triangle equals the square of the length of the hypotenuse.

B- The length of the hypotenuse of a right triangle is greater than the sum of the lengths of the legs.

C- The sum of the lengths of the legs of a right triangle equals the length of the hypotenuse.

D- For any triangle, the sum of the squares of any two side
lengths is equal to the square
of the third side length.