Adobe Flash Player is required to view this content.

Get Adobe Flash player

  1. Create square (see 3.3.48 Erection of a square)

  2. Extend baselines in direction of expansion

  3. Step off 5 divisions on one side (by division into equal parts (3.2.40) or trial and error)

  4. Add 3 of the same divisions to base line; mark A

  5. Erect perpendicular at A or transfer setting to opposite baseline; Result is a 5:8 rectangle