A complete and practical solution book for the common school teacher (1899)
Fairchild, J[ohn] T[heodore] [from old catalog] · Crawfis College, Ohio, The author · leaf 220
ength gives its width, or vice versa. MENSURA TION. 205 (17) PF=V202+4£ 2-20.5 ch..-. PF=20.5 ch. PROBLEM 407. In a square field which contains 10 A., a line is drawn from thesouthwest corner to the middle of the north side; from the southeastcorner to the middle of the north side; and from the… … V (10X160).The area of the triangle BEF is 20x40^2, or 400 sq. rd., which is also the area of the triangle ABE, for it has the same base BE and the same alti-tude EF.Subtract the area of the triangle BEC from this, and the result is the area required.Since BE is half AF, the altitude of the…
Arithmetic · Geometry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
