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Advice to Students
Instructions for straight line ruling
Instructions for geometrical construc
4 other sections not shown
15 degrees 30 degrees 45-degree line 4H pencil 7b construct arcs which intersect bisect a given Bisect the angle border line CALIFORNIA center line circumfer circumference cone CONIC SECTIONS Construct and letter COUNTY UNION HIGH cycloid cylinder cylinder block describe arcs diameter distance divide dotted draw a line Draw a vertical Draw details DRAWING IA DRAWING IB DRAWN DRAWING Plates ence end view epicycloid equilateral triangle eraser fifth plate freehand lettering front view Geometrical constructions GEOMETRICAL DRAWING given line guide lines half section hand wheel head is snug helix hexagon horizontal line hyperbola hypocycloid inch divisions irregular curve left-hand edge number of equal object obtained orthographic projection parabola parallel perpendicular to a-C reference books required circle required ellipse required line right circular cone scale screw thread shows the lay-out smooth curve student T-square tangent three orthographic views three views top view UNION HIGH SCHOOL vertical lines