Construction
See It in Action
Two examples of the idea done right—and one common look-alike that is not right.
EXAMPLE
EXAMPLE
NON-EXAMPLE
Definition
In Geometry, construction refers to the process of drawing geometric figures accurately using only a compass and a straightedge (a ruler without measurement markings). This method follows a set of rules and procedures derived from classical Greek geometry, particularly Euclidean geometry.
Construction in geometry is the method of creating geometric shapes, angles, or lines using only a compass and a straightedge, without measuring lengths or angles numerically.
Examples of geometric constructions:
Constructing a perpendicular bisector of a line segment
Constructing an angle bisector
Constructing a triangle given certain conditions
Constructing a line parallel to a given line through a point
These constructions are considered exact and are based on logical steps that follow geometric principles.