 | Evan Wilhelm Evans - 1862 - 116 páginas
...>IETRY . Cor. In equal triangles, equal angles are opposite to equal sides. THEOREM VIII. The angles at the base of an isosceles triangle are equal to each other. Let ABC be an isosceles triangle having the side AC equal to the side BC. It is to be proved that the... | |
 | Euclides - 1864 - 262 páginas
...of the one equal to two sides, &c. Which was to be 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... | |
 | Euclides - 1865 - 402 páginas
...or opposite angles are equal . . . . . . I. 15. . B. Relating to the Sidet and Angles of Triangles. 1. The angles at the base of an isosceles triangle are equal to one another ; and if the equal sides be prodnced, the angles on the other side of the base are equal... | |
 | James Stewart Eaton - 1868 - 356 páginas
...angles in a rightangled triangle? What i* said of the angles of an isosceles triangle? 2. The angles at the base of an isosceles triangle are equal to each other, and an equilateral triangle is also equiangular. Conversely, if two angles of a triangle are equal,... | |
 | Robert Potts - 1865 - 528 páginas
...sidesof the one equal to two sides, &c. Which was to be 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 sife of the base sJu1ll be equal. Let... | |
 | Samuel Alsop - 1865 - 440 páginas
...interior angles AFG and FGC, BFG and FGD, are each equal to two right angles. (29.1.) 74. The angles at the base of an isosceles triangle are equal to each other. (5.1.) 75. If one side of a triangle be produced, the exterior angle so formed will be equal to the... | |
 | 1868 - 876 páginas
...four years finds himself £220 in debt. What was their income? 20 100 GEOMETRY. SRD DIVISION. Value*. 1. The angles at the base of an isosceles triangle are equal to each other ; and if the equal sides be produced the angles ou the other side of this base shall be equal 30 2.... | |
 | William Stanley Jevons - 1870 - 420 páginas
...may be required to describe the notions or classes compared together. In the proposition "the angles at the base of an isosceles triangle are equal to each other," the first term requires nine words for its expression, and the second term, four words (equal to each... | |
 | 1870 - 482 páginas
...thousand stages, if need be, till you bring it to the meaning required. Thus you may prove that the angles at the base of an isosceles triangle are equal to each other, by the music of the spheres, or the eternity of the world from the nature of cause and effect. Once... | |
 | Edinburgh univ - 1871 - 392 páginas
...10^d., what do I gain per cent. ? ELEMENTS OF MATHEMATICS AND ALGEBRA. Wednesday, 1<)th Of taber 1870. 1. 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... | |
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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. 
