| Euclides, David Gregory - Mathematics, Greek - 1765 - 464 pages
...all equilateral and equiangular figures are alike deferred upon any right lines. PROP. XIX. THE OR, **Similar triangles are to one another in the duplicate ratio of their homologous** fides. Let the trianges A B. c, DEF be fimilar, having the angle B equal to the angled ; and let AB... | |
| Robert Simson, Euclid - Trigonometry - 1775 - 520 pages
...a given ftraight line li« milar to one given, and- fo on. Which was to be done. PROP. XIX. THEO R. **SIMILAR triangles are to one another in the duplicate ratio of their homologous** ftdes. Let ABC, DEF be fimilar triangles having the angle B equal to the angle E, and let AB be to... | |
| Euclid - 1781 - 520 pages
...upon a given ftraight line ;.milar to one given, and fo ou. Which was to be doue. PROP. XIX. THEO R. **SIMILAR triangles are to one another in the duplicate ratio of their homologous** fides. Let ABC, DEF be fimilar triangles, having the angle B equal to the angle E, and let AB he to... | |
| John Playfair - Euclid's Elements - 1795 - 400 pages
...given ftraight line fimilar tct one given, and fo on. Which was to be done. S PROP. XIX. THEO R. IMILAR **triangles are to one another in the duplicate ratio of their homologous** fides. Let ABC, DEF be fimilar triangles, having the nngle B equal to the angle E, and let AB be to... | |
| Alexander Ingram, Robert Simson - Trigonometry - 1799 - 351 pages
...fimilar to CDKFE : and fo on. Which was to be done. PROP. BooK V|. PROP. XIX. THEOR. V>rv-vJ IMILAR **triangles are to one another in the duplicate ratio of their homologous** fides. Let ABC, DEF be fimilar triangles, having the angle B equal to the angle E, and let AB be to... | |
| John Playfair - Trigonometry - 1806 - 311 pages
...therefore they are similar to each other. In the same manner a rectilineal figure of six, or more, **sides may be described upon a given straight line similar to one given.** Which was to be done. PROP. XIX. THEOR. SIMILAR triangles are to one another in the duplicate ratio... | |
| John Mason Good, Olinthus Gilbert Gregory - 1813
...rectilineal figure similar, and similarly situated to a given rectilineal figure. Prop. XIX. Tbeor. **Similar triangles are to one another in the duplicate ratio of their homologous sides.** Prop. XX. Theor. Similar polygons may be divided into the same number of similar triangles, having... | |
| 1814
...though he should have met it before. The demonstration of the 19tb Prop, of Euclid's 6th book, ie " **Similar triangles are to one another in the duplicate ratio of their homologous sides,"** requires the previous or the syn hro nous establishment of Props, vi. 11, v. 16, v. 11, vi. 15., and... | |
| Euclides - Geometry - 1816 - 528 pages
...sides, and it has already been proved in triangles. Therefore, universally, similar rectilineal figures **are to one another in the duplicate ratio of their homologous sides.** COR. 2. And if to AB, FG, two of the homologous sides, k 10 Def. 5. a third proportional M be taken,... | |
| John Playfair - 1819 - 317 pages
...a rectilineal figure of six, or more, sides may be described upon a given straight line similar Co **one given, and so on. Which was to be done. ^ PROP....in the duplicate ratio of their homologous sides.** D Let ABC, DEF be similar triangles, having the angle B equal to the angle E, and let AB be to BC,... | |
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