The coordinates of the rectangle are (-3,-1), (1,3), (3,1) and (-1,-3).
Draw the given rectangle as shown in the figure below.
Calculate the length of the rectangle as a = √(4² + 4²) = 4√2 Calculate the width of the rectangle as b = √(2² + (-2)²) = 2√2 Calculate the area of the rectangle as A = a*b = (4√2) * (2√2) = 16