Use area of squares to visualize Pythagorean theorem Two sides of a right triangle measure 2 units and 4 units.
What is the area of the square that shares a side with the third side of the triangle?

___ units ^2

Answer is d = 121.51  use the compound interest formulae    a = p (1 + (r/12)/100)^(12*n)  run 2 case  p = 1700  r = 18.7, r = 12.5  n = 1 (as the problem is asking over the course of a year)  solve for a for both the r and subtract the two values of a to obtain ~121.51