CHAPTER 2
GEOMETRIC CONSTRUCTION
Overview
Introduction
Familiarity with the step-by-step methods used for constructing geometric
figures and knowing related definition of terms help you understand the
practical applications of geometric construction to problem solving. Simplified-
or preferred methods of geometric construction, as well as alternate methods,
are valuable knowledge factors when used with drafting instruments to create
accurate drawings. Geometric construction applies equally to computer-
generated drawings as it does to more traditional instrumental drawings using
triangles, compasses, protractors, and straightedges.
Objectives
The material in this chapter enables you to do the following:
Identify angles as acute, obtuse, complimentary, or supplemental.
Inscribe and circumscribe geometric figures.
Calculate the degrees in an angle of a regular polygon.
Identify quadrilaterals.
Bisect lines, angles, and circles.
Create an ellipse using the trammel or foci method.
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