Construction Of A Golden Rectangle
Illustration showing the construction of a golden rectangle. Beginning with a unit square, a line is then drawn from the midpoint of one side of the square to its opposite corner. Using that line, an arc is drawn that defines the length of the rectangle. Two quantities are considered to be in the golden ratio if (a+ b)/a = a/b which is represented by the Greek letter phi.
Florida Center for Instructional Technology Clipart ETC (Tampa: University of South Florida, 2007)