This rectangle represents a Golden Rectangle where the width is 16.28 units and the height is 10 units - the ratio of the width to the height equals the Golden Ratio which is 1.618
Note the vertical line in the middle of the rectangle creates a square of 10 unit sides and a vertical rectangle on the right which is 10 units high by 6.18 units wide- the ratio of the the sides is 10/6.18 = 1.618 - the Golden Ratio.