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
PRACTICAL 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 … scribe another arc, cut- c l ting the first at g ; join ^ ^ A G, G B : this will give the triangle required. Problem IY. To find the centre of a given circle. Draw any two chords a b, B c, and divide each into two equal parts, as shown at e and D ; draw the lines e o and o d at right angles to a b…
Bricklaying · Plastering · Masonry
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