Polygonal Construction, ContinuedPolygonscomposed offive or moresidesYou can construct polygons composed of more than five sides usingcombinations of triangles, a pair of dividers, or a protractor. You may alsocircumscribe or inscribe multisided polygons in a square or circle. Alwaysdraw horizontal and vertical lines intersecting at right angles to each otherfirst. Use the intersection of these lines as a center point for drawing circlesor squares. The method for constructing multisided polygons with a pair ofdividers is least accurate. The process requires you to estimate and lay outby trial and error equal portions along the circumference of the circle.Figure 2-42 shows a pentagon constructed using a pair of dividers.Figure 2-42.—The pentagon.When using triangles to construct multisided polygons, you are limited togeometric figures that can be divided into angles that correspond to one ofthe 11 angles measurable by a triangle or combination of triangles such ashexagons (60°) and octagons (45°).Figure 2-43 illustrates how to use triangles to construct a hexagon.Figure 4-43.—A hexagon.Continued on next page2-43
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