Geometrical Constructions

What is Geometrical Constructions?

Accurate drawing with mathematical instruments: measuring and drawing lines to the nearest millimetre and angles to the nearest degree, and constructing a triangle from three given side lengths using only a ruler and a pair of compasses, with the compass arcs left visible as evidence. Also covers nets, the flat patterns that fold to make a solid without gaps or overlaps.

This definition is part of the Geometry chapter in Cambridge O Level Mathematics (Syllabus D).

Concepts related to Geometrical Constructions

• construction arcs
• triangle inequality
• surface area