The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 54
Fig 69. 103.— To make a square equal to two or more given squares,Let A and B, (Fig. 69,) be two given squares. Place them scas to form a right angle, as at a ; join b and c ; then the square,C, formed upon the line, b c, will be equal in extent to the squares,A and B, added together. Again : if a… … the side of a given square, c a, placed at right angleo to a b, be theside of another given square, and c d, placed at right angles to 40 PRACTICAL GEOMETRY. c 6, be the side of a third given square; then the square, A,formed upon the line, d 6, will be equal to the three givensquares. (See Art.…
Carpentry · Architecture
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