Construct it
The constructions this book asks for, with a ruler, a compass and a sharp pencil. Pick a set of values, construct it on paper one step at a time, and check each step against the drawing. Every drawing is at true size.
- Angles with a compass 60°, 120° and 90°, and 30° and 45° by bisecting Unit 14 · Plane Figures
- More angles with a compass 15°, 75°, 105°, 135° and 150°, each by bisecting Unit 14 · Plane Figures
- A rectangle From two adjacent sides Unit 14 · Plane Figures
- A square From its side Unit 14 · Plane Figures
- A parallelogram from two sides and an angle Two adjacent sides and the angle between them Unit 14 · Plane Figures
- A parallelogram from two sides and a diagonal Two adjacent sides and a diagonal: a triangle, then its copy Unit 14 · Plane Figures
- A parallelogram from a diagonal’s angle The angle a diagonal makes with a side, and two sides or the diagonal Unit 14 · Plane Figures
- A regular hexagon in a circle Step the radius round the circle six times Unit 14 · Plane Figures
- A right-angled triangle (RHS) From the right angle, the hypotenuse and a side Unit 15 · Congruency and Similarity