The rudiments of practical bricklaying : in six sections : general principles of bricklaying, arch drawing, cutting, and setting, different kinds of pointing, paving, tiling, materials, slating, and plastering, practical geometry, mensuration, etc. (1882)
Hammond, Adam · London : C. Lockwood · leaf 105
TICAL GEOMETRY AND MENSURATION. 89 A and B will form with the line A b the triangle required. Problem III. To describe a triangle, having the length of the three sides given. Let A B, c D, E F, be the given lines, of which A B is the base line. From B as centre with c D as radius describe an arc,… … at o will be the centre of the given circle a b c. Problem V. To describe a regular pentagon upon a given line. Let A B be the given line. With b as centre and B A as radius describe the semicircle a c d ; then with a as centre, with same radius, describe
Bricklaying · Plastering · Masonry
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