 | Euclides - 1842 - 316 pàgines
...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...produced, the angles upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side AB is equal to AC, and let the straight... | |
 | John Playfair - 1842 - 332 pàgines
...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... | |
 | John Playfair - 1844 - 338 pàgines
...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...produced, the angles upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side AB is equal to AC, and let the straight... | |
 | 1844 - 456 pàgines
...horizon, in the same plane with it, are observed ; to find the distance between them. 1842. GEOMETRY. 1. The angles at the base of an isosceles triangle...another ; and if the equal sides be produced, the angles on the other side of the base are equal. 2. Give different methods of drawing a straight line at right... | |
 | 1844 - 688 pàgines
...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... | |
 | Euclid - 1845 - 218 pàgines
...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...produced, the angles upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side AB is equal to AC, and let the straight... | |
 | Euclid, James Thomson - 1845 - 382 pàgines
...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, John Playfair - 1846 - 334 pàgines
...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...produced, the angles upon the other side of the base shall be equal. Let ABC be an isosceles triangle, of which the side AB is equal to AC, and let the straight... | |
 | Euclides - 1846 - 292 pàgines
...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 AB is equal to AC, and let the straight... | |
 | Dennis M'Curdy - 1846 - 166 pàgines
...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.... | |
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THE angles at the base of an isosceles 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. 
