Practical Plane and Solid Geometry ...

A B C D axis base A B Bisect centre line chord circumference cube curved line cut A B cut the circle cut the former cut the side cycloid cylinder diagonal diameter distance divide divisions draw a circle draw a line draw a semicircle draw an arc draw arcs draw lines parallel draw parallels draw perpendiculars draw the envelope draw the plan edge ellipse equal in area equally inclined equilateral triangle frustum given angle given circle given figure given line given point given rectangle given triangle icosahedron intersection Isometrical Projection Join these points length Let A B C lines drawn lines to cut mark number of equal octahedron parabola parallel to A B parallelogram perpendicular to A B Perspective Projection plan and elevation polygon previous figure radii radius ratio right angles scale shadow shown side A B solid sphere tetrahedron Vernier width