Hicks' builders' guide : comprising an easy, practical system of estimating material and labor for carpenters, contractors and builders .. (1910)
Hicks, Isaac Perry, 1856- · New York : David Williams Company · leaf 42
y regular polygon maybe found by drawing lines from all of its angles tothe center, thus forming triangles of equal areas,which may be estimated by multiplying the base byone-half the altitude, as shown in Fig. 41. To describeany regular polygon draw the circumference of a cir-cle ; divide the… … Fig. 44.—Plan of an OctagonTower Roof. Fig. 45.—An Elevation of an.Octagon Tower Roof. is shown in Fig. 43. In Fig. 44 is represented a planand in Fig. 45 an elevation of an octagon tower roof.In Fig. 45 A B C D represent the plates and A E,B E, C E and D E the hip rafters. The dotted lineF E…
Carpentry · Building
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