 | William Harris Johnston - 1865 - 478 σελίδες
...Tho proof of thle method depends on Euclid, Book I.. Prop. 5, in which it is shown that the angles at the base of an isosceles triangle are equal to one another (in the present instance, the angle то С D, and the angle m D С that would be formed by drawing... | |
 | Robert Potts - 1865 - 528 σελίδες
...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 AB C be an isosceles triangle of which the side AB is equal to... | |
 | Euclid, Isaac Todhunter - 1867 - 424 σελίδες
...ACB to the angle DFE. Wherefore, if two triangles &c. QED r"-' PROPOSITION 5. THEOREM. Ttie~angles at the base of an isosceles triangle are equal to...angles on the other side of the base shall be equal to one another. Let ABC be an isosceles triangle, having the side AB equal to the side AC, and let... | |
 | Euclid, Isaac Todhunter - 1867 - 426 σελίδες
...angle ACB to the angle DFE. Wherefore, if two triangles &c. QED PROPOSITION 5. THEOREM. TJie angles at the base of an isosceles triangle are equal to...angles on the other side of the base shall be equal to one another. Let ABC be an isosceles triangle, having the side AB equal to the side AC, and let... | |
 | Robert Potts - 1868 - 434 σελίδες
...demonstrated. PROPOSITION V. THEOREM. The angles at the base of an isosceles triangle are equal to each nfher ; 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 side AB is equal to AC, and let the equal sides AB, ACbe... | |
 | James Et Al Parton - 1868 - 656 σελίδες
...Proposition not only inwardly, but as an outward application; so that it might have read thus : " The angles at the base of an isosceles triangle are equal to one another; and if the equal sides be produced in curl papers, the angles on the other side of the os frontis are also equal." But in the laughing,... | |
 | 1868 - 876 σελίδες
...when and where will he overtake A 25 EUCLID— BOOKS I. AND II. THIRD DIVISION. Values. \. The angles at the base of an isosceles triangle are equal to one another ; and, if the equal aide produced, the angles upon (he other side of the base shall be equtil 15 2. The greater side of... | |
 | James Parton - 1869 - 702 σελίδες
...Proposition not only inwardly, but as an outward application ; so that it might have read thus : " The angles at the base of an isosceles triangle are equal to one another ; and if the equal sides be produced in curl papers, the angles on the other side of the os frontis are also equal." But in the laughing,... | |
 | Euclides - 1870 - 270 σελίδες
...equal, and its angles rt. angles. 5. I. The angles at the base of an isosceles triangle are equal, and if the equal sides be produced, the angles on the other side of the base shall bo equ;il. Ax. 1. Magnitudes, &c. 6. I. If two angles of a triangle be equal to one another, the sides... | |
 | Euclides - 1871 - 136 σελίδες
...I. give good examples of symmetrical constructions. NOTE XI. Euclid-s Prop. V. of Book I. 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 A, having AB = AC. Produce... | |
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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. 
