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 169
B, C, and D, which will give the points H, G, and E. Join KH,HE, EG, and GK. Then EGHK will be the trapezium required. Peoblem 174. To dravj a circle one-half the radius of a given circle,hij DIEECT and inveese similitude. Let A be the centre of the given circle. Take any con-venient point E.… … Fig. 277. radius, draw the circle required,similitude. This would be by direct To draiu it hy inverse similitude. Take any convenient point C, and draw a line from A throughC to B, making CB equal to one-half of AC. From C drawtangents to the given circle (Prob. 84) touching it in the pointsH and…
Geometrical drawing
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