Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 208
X D Fig. 1. … Given A^^X, with zlx acute j and p, the projection of bupon a. To find the value of o^ in terms of a, b, and p. Argument 1. In rt. A BAD, or = 11)^ + Db^. 2. But AD^ = b^-p\ 3. And DB = a—p (Pig. 1) or p —a (Fig. 2). 4. .-. DB = a- — 2ap+ p^, 5. .-. x = b--2r + « -2ap + p-,i.e. a:^ = a^+ b-— 2 ap.…
Geometry, Plane · Geometry, Solid
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
