Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 129
othe plane MN ; AB, AC, AD,oblique lines equally distantfrom the perpendicular, andAE a line more remote : thenwill AB = AC = A1); and AKwill be p;rcatcr than AD. For, the angles AIP>, A PC,APD, being right angles, if wesuppose the distances PB, PC,PI), to be equal to ea<h other, the… … NPD, les;thelike 130 GEOMETRY. manner, if the distance PEis greater than PD or its equal PB,the obhque hne AE will evidently be greater than AB, or itsequal AD. Cor. AH the equal obliquelines, AB, AC, AD, ifec. termi-nate inthe circumference BCD,described from P the foot of the -^j)erpendicular as…
Trigonometry · Geometry
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