. Cyclopedia of architecture, carpentry, and building : a general reference work .... Suppose the height efis to be 24 inches, the diameters c andd each 11 inches; what must the length of a h be, so that the tankwill hold 30 gallons ? 358 PROBLEMS IN MENSURATION 111 Fig, 7 is shown a fitting used in ventilation piping; thediameter a h is 11^ inches and it is desired that the oblono- pipeon the opposite end shall have an area similar to the round pipe a h\if 6^/must be 5 inches, what must c d be so that both areas are alike ? Suppose the pipe is to be square in place of oblong, what mustthe len
. Cyclopedia of architecture, carpentry, and building : a general reference work .... Suppose the height efis to be 24 inches, the diameters c andd each 11 inches; what must the length of a h be, so that the tankwill hold 30 gallons ? 358 PROBLEMS IN MENSURATION 111 Fig, 7 is shown a fitting used in ventilation piping; thediameter a h is 11^ inches and it is desired that the oblono- pipeon the opposite end shall have an area similar to the round pipe a h\if 6^/must be 5 inches, what must c d be so that both areas are alike ? Suppose the pipe is to be square in place of oblong, what mustthe length of each side be, so that both ends have similar area ? In Fig. 8, a 1) is 40 inches in diameter; and each one of thebranches <?, c7, and e are to have equal diameters, what must thediameter of the branches be, so that the combined area of c, c/,and e will equal the area oi ahl If 0 is 10 inches in diameter, <l 12 inches, and e 8 inches,what must be the diameter, of ct h, to have the combined area ofthe branches ? Fig. 9 shows a transition piece from a round pipe a to an.
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