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.
- A parallel line with set squares Slide a set square along a ruler Unit 14 · Lines and Angles
- A perpendicular with a set square Its right-angled corner on the line, against a ruler Unit 14 · Lines and Angles
- Bisecting a line segment Its midpoint, and the perpendicular through it Unit 14 · Lines and Angles
- Angles with a protractor Any angle: the protractor on the base line, a mark at the reading Unit 14 · Lines and Angles
- Bisecting an angle Cut any angle into two equal halves Unit 14 · Lines and Angles
- Angles with set squares Their corners: 30°, 45°, 60° and 90°, and two together for 120°, 135° and 150° Unit 14 · Lines and Angles
- Angles with a compass 60°, 120° and 90°, and 30° and 45° by bisecting Unit 14 · Lines and Angles