 | Euclides - 1816 - Liczba stron: 588
...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 - Liczba stron: 456
...these triangles (I. 2.) are equal, and the angle ACD or ACE is equal to BCD or BCE. Again, the inferior triangles ACE and BCE, having the side AC equal to...the base AE is equal to BE. / PROP. VIII. THEOR. The exterior angle of a triangle is greater than either of its interior opposite angles. The exterior angle... | |
 | John Playfair - 1819 - Liczba stron: 350
...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 another ; and if the equal sides be produced, the angles upon the other side of the base shall... | |
 | Sir John Leslie - 1820 - Liczba stron: 488
...angle being always acute; wherefore that single angle may serve to designate the triangle. PROP. X. THEOR. The angles at the base of an isosceles triangle...isosceles triangle ABC are equal. For draw (I. 5.) I51) bisecting the vertical angle ABC. Because, by hypothesis, BA is equal to BC, the side BD common... | |
 | Robert Simson - 1827 - Liczba stron: 546
...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 another ; and if f f1e equal sides be produced, the angles upon the otber side of the base shall... | |
 | Euclid, Robert Simson - 1829 - Liczba stron: 548
...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 another: and, if the equal sides be produced, the angles upon the other side of the base shall... | |
 | Euclid - 1835 - Liczba stron: 540
...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 another ; and if the equal sides be produced, the angles upon the other side of the base shall... | |
 | John Playfair - 1836 - Liczba stron: 148
...to which the equal sides are opposite shall be equal, each to each. Which was to be proved. 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... | |
 | Euclides - 1838 - Liczba stron: 264
...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 another; and if the equal sides be produced, the angles upon the other side of the base shall... | |
 | Euclides - 1841 - Liczba stron: 378
...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 another; and if the equal sides be produced, the angles -upon the other side of the base shall... | |
| |
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 side AB is equal to... 
