| Peter M. Engelfriet - Mathematics - 1998 - 516 pages
...ie cannot be expressed in whole numbers (OM I, p. 369)." 12. =&mftm Heath In obtuse-angled triangles the square on the side subtending the obtuse angle...the obtuse angle by twice the rectangle contained by one of the sides about the obtuse angle, namely that on which the perpendicular falls, and the straight... | |
| Euclid - 454 pages
...cutting a given straight line in extreme and mean ratio. PROPOSITION 1 2. In obtuse-angled triangles the square on the side subtending the obtuse angle...the obtuse angle by twice the rectangle contained by one of the sides about 'he obtuse angle, namely that on which the 26 — 2 perpendicular falls, and... | |
| Saskatchewan. Department of Education - Education - 1913 - 202 pages
...EFG are equal. 4-. (a) Prove that in an obtuse-angled triangle if a perpendicular be drawn from one of the acute angles to the opposite side produced,...side subtending the obtuse angle is greater than the sum of the squares on the other sides by twice the rectangle contained by the side on which, when produced,... | |
| h. m. taylor - 698 pages
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| Surveying - 1908 - 608 pages
...7 3 i у" - 4.x2 = 4.-K + 1 4. Show that in an obtuse angled triangle, if a perpendicular be drawn from either of the acute angles to the opposite side produced the square on the side opposite the obtuse angle is greater than the sum of the squares on the sides forming the obtuse angle... | |
| Education Department - 1879 - 1136 pages
...angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite aide produced, the square on the side subtending the obtuse Angle is greater than the sum of the squares on the sides containing the obtu=e angle, by twice the rectangle contained by the... | |
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