This chapter begins with basic definitions of geometric figures. Explanations
in the terminology and construction of two-dimensional figures such as lines,
points, angles, triangles, quadrilaterals, and polygons form the foundation to
understanding more the advanced geometric constructions of polyhedrons and
solids. Bisection, division, transference, and tangency are all problem
solving techniques that help you in advanced drafting situations. Polygonal,
ellipse, and involute construction techniques should help to simplify
geometric figure construction.
Geometric Construction is all about definitions. If you do not know the
definitions in this chapter, study this chapter carefully and understand the
terminology before you proceed into other chapters.
Once past the definitions, actual construction of geometric figures are simply,
logically, and mathematically solvable. Geometric figure construction
exercises your abilities to mentally solve problems and physically use
drafting instruments to draw the solutions to problems on paper in a
universally understood graphic language.
Geometric constructions are equally valid concepts whether you are drawing
in pencil on paper or sitting at a computer drawing on a monitor screen.