How to find the length of a diagonal of the rectangle

What is the diagonal measurement of a rectangle 150 feet in length by 100 feet in width? Use the Pythagorean Theorem (a^2 + b^2 = c^2). A and B are the lengths of the two sides of the rectangle. To get the length of the hypotenuse, you would need to solve for C. C is the square root of (A squared plus B squared).