 | Sir Norman Lockyer - 1880 - 668 sider
...Theorem VI. of the syllabus, which is the same as as Proposition V. of Euclid, namely, "The angles at the base of an isosceles triangle are equal to one another," the syllabus suggests a different demonstration from that of Euclid. The extreme complication of the... | |
 | Alfred Milnes - 1880 - 140 sider
...(Wilson, I. 22). 56. Also for Euc. I. 39 (Wilson, II. 4). 57. Also for Euc. I. 40. 58. " The angles at the base of an isosceles triangle are equal to one another." Express this as an hypothetical proposition, and when so expressed, convert it. 59. Are the enunciations... | |
 | John Herbert Williams - 1881 - 90 sider
...eveo-Ti фam's, A. 5). — Winkelmann. «*» Five lines. The angles at (тгepi) the base (insert ye) of an isosceles triangle are equal to one another ; and if the equal sides ('the sides themselves') be produced (fxr¡Kvvш, fut. pass.), then the angles also on-the-otherside-of... | |
 | John Gibson - 1881 - 302 sider
...your answer to it, or no marks will be awarded. 1. The angles at the base of an isosceles triangle FGH are equal to one another ; and if the equal sides be produced, the angles on the other side of the base shall be equal to one another. 2. At a given point P in a given straight... | |
 | Samuel Earnshaw - 1881 - 602 sider
...vol. 1. 1C5 ; n. 5t, 9G, 1-1") ; Diogenes Laertius lib. I. cap. I. §§8, 6. diameter. (2) The angles at the base of an isosceles triangle are equal to one another. (3) When two straight lines cut one another the vertical angles are equal. (4) A method of determining... | |
 | Charles Taylor - 1881 - 486 sider
...1. 163 ; II. 54, 9:3, 1 H) ; Diogenes Laertius lib. I. cap. I. §§ 3, 6. diameter. (2) The angles at the base of an isosceles triangle are equal to one another. (3) When two straight lines cut onfe another the vertical angles are equal. (4) A method of determining... | |
 | Euclides - 1881 - 236 sider
...sides oj a triangle be equal to one. another, the angles which are opposite to the equal sides, are aim equal to one another ;" and If the equal sides be produced, the anglet upon the other side of the base shall likewise be equal. PROP. VI. THEOREM. If two angles of... | |
 | Herbert Spencer - 1881 - 756 sider
...the abstract terms are forthwith abandoned, and the proposition is re-stated in a concrete form. " Let ABC be an isosceles triangle, of which the side AB is equal to the side AC ; then the angle ABC shall be equal to the angle AC B." By a series of steps which... | |
 | 1883 - 536 sider
...straight line, or divide it into two equal parts. 3. Show by the method of superposition that the angles at the base of an isosceles triangle are equal to one another. 4. Triangles on the same base and between the same parallels are equal. 5. Distinguish clearly between... | |
 | Mary W I. Shilleto - 1882 - 418 sider
...advised not to confine themselves to one paper, but to make use of the whole set. (a) 1. The angles at the base of an isosceles triangle are equal to...angles upon the other side of the base shall be equal. In Euclid's figure for this proposition, if BG, CF meet in H, show that AH bisects the angle BAG. 2.... | |
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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. 
