| Euclides - 1842
...are opposite shall be equal, each to each. Which was to be demonstrated. PROP. V. THEOR. THE angles **at the base of an isosceles triangle are equal to...another ; and if the equal sides be produced, the angles** upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side... | |
| John Playfair - 1842 - 317 Seiten
...angles, to which the equal sides are opposite, shall be equal, each to each. PROP. V. THEOR. The angles **at the base of an Isosceles triangle are equal to one another ; and if the equal sides be produced,** tfte angles upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which... | |
| 1844
...same plane with it, are observed ; to find the distance between them. 1842. GEOMETRY. 1. The angles **at the base of an isosceles triangle are equal to...produced, the angles on the other side of the base** are equal. 2. Give different methods of drawing a straight line at right angles to another ; and explain... | |
| 1844
...circle and the centre of a circle. What do you understand by an angle in a segment ? 2. The angles **at the base of an isosceles triangle are equal to one another ; and if** tbe equal sides be produced, the angles upon the other side of the base shall be equal. 3. If from... | |
| Euclides - 1845
...demonstrated. PROPOSITION V. THEOREM. The angles at the base of an isosceles triangle are equal to each other; **and if the equal sides be produced, the angles on the other side of the base shall be equal.** Let ABC be an isosceles triangle of which the sideAB is equal to AC, and let the equal sides AB, AC... | |
| Euclid, James Thomson - 1845 - 352 Seiten
...the angles formed hy producing AC and DF through (J and F are equal. PROP. V. THEOR. — The angles **at the base of an isosceles triangle are equal to one another ; and, if the equal sides** he produced, the angles upon the other side of the base are also equal.* Let ABC be an isosceles triangle,... | |
| Euclid - 1845 - 199 Seiten
...each. Which was to be demonstrated. PROPOSITION V. THEOR. — The angles at the base of an isoscelet **triangle are equal to one another ; and if the equal sides be produced, the angles** upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side... | |
| John Playfair - 1846 - 317 Seiten
...angles, to which the equal sides are opposite, shall be equal, each to each. PROP. V. THEOR. The angles **at the base of an Isosceles triangle are equal to...another ; and if the equal sides be produced, the angles** upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side... | |
| Dennis M'Curdy - 1846 - 138 Seiten
...taken is a portion of space, to which each of the triangles is applied. 5 Th. The angles (ABC, ACB), **at the base of an isosceles triangle, are equal to one another ; and if the equal sides** (AB, AC,) be produced (to D and E), the angles (BCE, CBD,) below the base (BC^ shall be equal. Constr.... | |
| Euclides - 1846
...Wherefore, If two triangles &c. QED PROP. V. THEOR. The angles at the base of an isosceles triangle an **equal to one another ; and, if the equal sides be produced, the angles** upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side... | |
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