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 31
FiG.21 Fig.22. Altitude. The height of a triangle or otherfigure is called its altitude. To measure the alti-tude, let fall a straight line from the vertex orhighest point in the figure, perpendicular to thebase or opposite side; or, to the base continued,as at B D, Fig. 21, should the form of the…
Architecture · Building
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