Smart, Edward Howard · London : Macmillian and Co. · leaf 114
^ on the pro-jection of AB. This projection must therefore be parallel toVE. Moreover (principle (2), ^ 8), AB and its projection mustcut the axis of projection in the same point. The projection … of AB is therefore obtained by drawing a parallel to VEthrough the point where AB cuts the axis of projection. Similarly the other sides may be drawn. The accuracy ofthe drawing may be checked by seeing whether the corre-sponding points of the original and the projected figures arecollinear with V…
Geometry, Projective
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