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Formal drawings are a more precise style of drawing. They can be produced by hand or with computer aided design (CAD) packages. Formal hand drawings use tools such as rulers and set squares to ensure ...

An axonometric perspective, also called parallel projection or axonometry, is an orthographic projection on an oblique plane as a means of representing three-dimensional objects. It is a very ...

IN defining the forms and dimensions of solids by means of scale drawings, a very useful method in certain cases is that of metric projection whereby three systems of parallel edges of the solid are ...