Which statement is an important part of the proof of the converse of the Pythagorean
theorem?
A. It must be assumed that the Pythagorean theorem is true.
B. It must be assumed that the sum of the lengths of any two sides of a triangle are less than the length of the third one.
C. It must be assumed that the Pythagorean theorem is false.
D. It must be assumed that the sum of the lengths of any two sides of a triangle are greater than the eleventh of the third side.