| Robert Simson - 1806 - 518 sider
...are opposite shall be equal, each to each. Which was to be demonstrated. PROP. V. T1IEOR. THE angles **at the base of an isosceles triangle are equal to...; 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 - 1806 - 311 sider
...Which was to be demonstrated. PROP. V. THEOR. THE angles at the base of an isosceles triangle are N. **equal to one another ; and, if the equal sides be., produced, the angles** upon the other side of the base shall also be equal. Let ABC be an isosceles triangle, of which the... | |
| Sir John Leslie - 1809 - 524 sider
...angle ACE equal to BCE, are (I. 3.) equal, and consequently the base AE is equal to BE. PROP VIII. **THEOR. The angles at the base of an isosceles triangle are equal.** The angles BAC and BCA at the base of the isosceles triangle ABC are equal. For draw (I. 5.) BD bisecting... | |
| Euclid - 1810 - 518 sider
...Which was to ^ be demonstrated. PROP. V. THEOR. THE angles at the base of an isosceles triangle arc **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 Mason Good - 1813
...each, viz. those to which the equal sides are opposite. Prop. V. Theor. The angles at the base of ло **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. •Prop. VI. Tbeor. If two angles uf -a ti ian-1«**... | |
| Euclides - 1814
...each. Which was to be demonstrated. PROP. V. THEOR. 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. Let ABC be an isosceles triangle, of which the Mile... | |
| John Gummere - 1814 - 346 sider
...the acute angles be subtracted from 90% the remainder will be the other acute angle. r 8. The angles **at the base of an isosceles triangle are equal to one another.** 9. If one side of a triangle be produced, the external angle will be equal to the sum of the two internal... | |
| Euclides - 1816 - 528 sider
...which the equal sides 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 one** andther; and if the equal sides be produced, the angles upon the other side of the base••shall... | |
| Sir John Leslie - 1817 - 432 sider
...triangle can only have one right or obtuse angle, its two remaining angles being always acutt. PROP. X. **THEOR. The angles at the base of an isosceles triangle are equal.** The angles BAC and BCA at the base of the isosceles triangle ABC are equal. For draw (I. 5.) BD bisecting... | |
| John Playfair - 1819 - 333 sider
...the equal sides 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...another ; and if the equal sides be produced, the angles** upon the other side of the base shall also be equal. Let ABC be an isosceles triangle, of which the... | |
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