The correct answer is A. Pythagoras was who created a formula used to calculate the length of a triangle’s side based on its other sides.
Explanation:
Pythagoras was a Greek philosopher and mathematician considered the first pure mathematician. He contributed significantly in the advancement of mathematics, geometry, arithmetic, particularly derived from numerical relationships, and applied for example to the theory of weights and measures, to the theory of music or astronomy.
The Pythagorean theorem states that in every right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the legs.
