Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 26
es, becausethey have four angles. A Parallelogram is a figure whose oppositesides are parallel, as A B C D, in Fig. 5. A [Rectangle is a parallelogram having fourright angles, as A B C D, in Fig. 5. A Square is an equilateral rectangle, having allits sides and angles equal, like Fig. 5. A Diagonal… … fiG.S. F16.6. the diagonal will divide it into two equal tri-angles, the opposite sides and angles of whichwill be equal to one another. Let A B C D, Fig. 6,be a parallelogram; join A C, then A C is a diag-onal, and the triangles ADC and ABC, intowhich it divides the parallelogram, are equal. A…
Architecture · Building
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