Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 206
ne equalto VS «6, a and b being given lines. Analysis. Let x = the required line. Then x = VSab. , .-. x^ = S ah.,\ S a:X = x:b. Ex. 708. Construct a line equal to a V3, where a is a given line.Ex. 709. Using a line one inch long as a unit, construct a line equalto VS; \/5 ; VG. Choosing your own… … B CD Given rt. A ABC, with its rt. Z at C.To prove a^ + 6^ = c^. Argument Reasons 1. From C draw CD X AB forming seg-ments I and d. 1. §155. 2. 0? = C h 2. § 443, II. 3. h^ = Cd. 3. § 443, II. 4. .,a? + W= c(l.-\-d). 4. § 54, 2. 5. .\ a^ + b^ = C - C = (?, Q.E.D. 5. §309. 447. Cor. I. The square of…
Geometry, Plane · Geometry, Solid
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