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 58
t right angles to each other;join BA. Set off on circum-ference, AF equal to AC ; joinAF and EF. With D as centre,and radius equal to EF, drawthe arc G on EA produced.With G- as centre, and radiusequal to AC, set off H on cir-cumference ; join AH. WithD and E as centres, and radiusequal to DC, set… … 38 PRACTICAL PLANE GEOMETRY EF will equal oue side of an equilateral triangle. ABBMAFAHBLDI a square,^pentagon,hexagon,octagon,decagon,duodecagon. Problem 38. To inscribe any regular polygon in a given circle.A heptagon, for example. Describe a circle, and draw the diameter AB. Divide AB
Geometrical drawing
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