| Edward James Mortimer Collins - 1874
...boards to lay misshapen white eggs. " Now, young gentlemen," says Glanville, taking snuff, " prove **that the angles at the base of an isosceles triangle are equal."** He motioned Algy to try first. The unfortunate youngster tried, and produced a network of nonsense... | |
| GEORGE HENRY LEWES - 1874
...particular case, or these few cases, will be equally visible in many, or all, cases resembling these. **That the angles at the base of an isosceles triangle are equal,** or that the square of 5 is 25, are intuitions, and admit of no doubt when the relations are clearly... | |
| Noah Porter - 1874 - 565 páginas
...plaiupd by iin In the fifth proposition of Playfair's Geometry, BI, it is proposed example, to prove **that the angles at the base of an isosceles triangle are equal.** The first step is to prepare the diagram by producing the two sides, AB, and AC, indefinitely towards... | |
| George Henry Lewes - 1874
...particular case, or these few cases, will be equally visible in many, or all, cases resembling these. **That the angles at the base of an isosceles triangle are equal,** or that the square of 5 is 25, are intuitions, and admit of no doubt when the relations are clearly... | |
| United States Naval Academy - 1874
...by a single substitution t Prove this. GEOMETRY. Time allotted, tiro ЛОНГА and a half. 1. Prove **that the angles at the base of an isosceles triangle are equal,** and that if p equal sides be produced the angles on the other side of the base will be equal. В С... | |
| Robert Lewis Dabney - 1875 - 369 páginas
...proposition is true, then it is true everywhere, and ' to all grades of minds. When once we are certain **that the angles at the base of an isosceles triangle are equal,** then we are obliged to believe that they are equal in any other planet, and in all the heavens, as... | |
| Cornell University - 1875
...imaginaries; multiply together (i + I/ — ') and (i — ii/ — 4) ; and explain. GEOMETRY. i. Prove **that the angles at the base of an isosceles triangle are equal** : and the converse theorem. 2. Prove that if there are two sets of proportional quantities, the products... | |
| 1878
...fifth proposition in Euclid for the sake of the discipline, not for the sake of learning the mere fact **that the angles at the base of an isosceles triangle are equal.** She answered: ' Yes, that is quite true, and I often think that we are on the wrong track altogether.... | |
| Francis Garden - 1878 - 161 páginas
...equilateral triangle must be equiangular, is a corollary from the conclusion of Prop. vbi of Euclid. That **is, that the angles at the base of an isosceles triangle are equal,** and any two angles of an equilateral are angles at the base of an isosceles triangle. The word corollary... | |
| Francis Garden - 1878 - 161 páginas
...equilateral triangle must be equiangular, is a corollary from the conclusion of Prop. vbi of Euclid. That **is, that the angles at the base of an isosceles triangle are equal,** and any two angles of an equilateral are angles at the base of an isosceles triangle. The word corollary... | |
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