You are adding 18%, which makes it 118% of original employees
Times 450 by 1.18 = 531
When we do this, the base of the parallelogram has length b 1 + b 2, and the height is the same as the trapezoids, so the area of the parallelogram is (b 1 + b 2)*h. Since the two trapezoids of the same size created this parallelogram, the area of one of those trapezoids is one half the area of the parallelogram
Hypotenuse is the longest side of a right triangle. It is equal to the sum of the squares on the other two sides.