Modern carpentry and joinery : being a compilation of the very best things and most modern and practical methods known in the arts of carpentry and joinery (1910)
Hodgson, Frederick Thomas, 1836- · Chicago : F. J. Drake & Co. · leaf 123
Let A B C (Fig. 87) be a vertical section through theaxis of a circular dome, and let it be required to coverthis dome horizontally. Bisect the base in the point 120 MODERN CARPENTRY D, and draw D B E perpendicular to A C, cutting thecircumference in B. Now divide the arc B C intoequal parts, so… … Fig. 87. the width of the a board; and join the points divisionby straight lines, which will form an inscribed polygonof so many sides; and through these points draw lineparallel to the base A C, meeting the opposite sides of SOLID GEOMETRY 121 the circumference. The trapezoids formed by the…
Carpentry
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