Fig. 80.
A SQUARE OF FOUR PIECES.
In a square card punch twelve holes, or make them with a pencil, and then cut it into four equal-sized pieces, each of the same shape, and containing three holes or marks.
Fig. 81.
The Puzzle of Five Pieces.
Find the centre of one side of four out of five squares, and cut them from that point to the opposite corner; place them around the perfect square, and they will form the figure here presented.
A
Fig. 82.