Ken's POTW

A Square and a Straightedge
  1. Divide a square into 5 regions of equal area using only a straightedge.

    To build up to the above problem, here are some [slightly] shorter ones that can be done first (again, using only a straightedge.) You may or may not need to do each of these in the process of solving the above problem.

  2. Bisect a side of the square.
  3. Trisect a side of the square.
  4. Divide the square into four smaller squares.
  5. Divide a side of the square into 8 equal segments.

    Source: 1. rec.puzzles, 2-5. Original. Used as Ken's Puzzle of the Day 4/13/94.

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