...to determine a point's distance to the center of the object. The Pythagorean theorem says that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. That is, x2 + y2 = r2. To solve for r (the radius) we take V(x2...
In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. 
