The Cabinet-Maker’s Problem.—The cabinet-maker must find the centre of the circle, and strike another circle, half the diameter of the first, and having the same centre. Then cut the whole into four parts, by means of two lines drawn at right angles to each other, then cut along the inner circle, and put the pieces together as in the following diagram.
Cabinet-Maker’s Problem.
The Nuns.
More Cross Cutting.
Button Puzzle.—Pull the narrow slip of the leather through the hole, and the string and buttons may be released.