Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 94
d EB. B Cor. If the line AB be divided intotwo equal parts, the rectangles DF andFB would become squares, and the squaredescribed on the whole line would beequivalent to four times the square de-scribed on half the line. Sch. The property may be expressed in the language ufalgebra, thus, {a +… … Let BAC be a right an-gled triangle, right angled atA\ then will the square de-scribed on the hypotbenuseBC, bo equivalent to tbe twosquares described on J]Aand AC. Having described thesquares BC, BL, and AI,let fall from A, on the hy-potbenuse, the perpendicular p ]g* QAD, and produce it to E\…
Geometry · Plane trigonometry
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