* A collage of a circle and a square is presented; diagonals are inserted. * A chart below the figures is given for students to fill in the measurements of each segment and/or circumference based on one given value. * The puzzle is quite the challenge, but can be a rewarding activity to complete especially if students compete with one another in class to see who can fill the table fastest and most accurately. * Additionally, the puzzle can be used as an extra credit project when they fin