... subtending the obtuse angle, is greater than the squares of the sides containing the obtuse angle, by twice the rectangle contained by the side upon which, when produced, the perpendicular falls, and the straight line intercepted without the triangle... The Practice of Engineering Field Work, Applied to Land, Hydrographic, and ... - Página 45 por W. Davis Haskoll - 1858 - 324 páginas Vista completa -
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