Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 61
^ The line AD is always drawn to the second division from C, whatevernumber of sides the polygon may contain. 40 PRACTICAL PLANE GEOMETRY … Problem 41. On a given line AB, to describe a regular polygon (secondmethod). For example, a pentagon. At point B erect a perpendicular equal to AB. With Bas centre, and radius BA, draw the quadrant AC, and divide it into as many equal divisions asthere are sides to the polygon (inthis case five).…
Geometrical drawing
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