A free calculator that will calculate the area and perimeter of a rectangle when the length and width are input. It also calculates the intersecting hypotenuse of the right angle that is present in all rectangles. So, this calculator can be used solely for calculating the hypotenuse of a right angle triangle, or for area or perimeter of a rectangle calculations. This Area, Perimeter, Hypotenuse Calculator Is Brought To You Compliments Of http://www.financesstudent.com .