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 111
Fig. 199. Fig. 200. rhomboid ABFE, or the rhomboid can be converted into anequivalent square. If triangles and parallelograms stand upon the same or equalbases, and hettveen the same parallels, the triangle is half the areaof the parallelogram, e.g.— The triangle ABF (Fig. 200) is half of the… … EQUIVALENT AREAS 91 The triangle EBD (Fig. 201) is equivalent to the rhomboidABCD. A triangle standing on the same, or equal base as the paral-lelogram, and double its vertical height, is equal in area to theparallelogram. The triangle ABF (Fig. 201) is equivalent tothe rhomboid ABCD, as well as to…
Geometrical drawing
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