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A complete treatise on practical land-surveying, in seven parts; (1839)
Nesbit, A[nthony], 1778-1859. [from old catalog] · London, Longman, Orme, Browne, Green, and Longmans; [etc., etc.] · leaf 26
23. An acute-angled triangle has all its angles acute; asABC. C … 24. An obtuse-angled triangle has one obtuse angle; asACB. CSurveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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