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 63
semicircle 42 meeting AB PRACTICAL PLANE GEOMETRY produced in C. With centre A, and radiusAB, draw an arc cutting thesemicircle in D, Draw DEperpendicular to AB. WithC as centre, and radius equalto DE, draw an arc cuttingthe semicircle in F. Join BE.Erom the three points A, B,E, find the centre of… … I, Problem 46. On a given line AB, to construct a regular octagon. At A and B erect the perpendiculars AC and BD.Produce AB to E. Bisect theangle DBE by the line BE.Make BE equal to AB. EromE draw the line EH parallelto AB, and make KH equal toLE. Join AH. Set off on ACand BD, from points A and B,a…
Geometrical drawing
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