 | John Playfair - 1806 - 320 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 side AB is equal to AC, and let the straight... | |
 | John Mason Good - 1813 - 714 sider
...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,...angles upon the other side of the base shall be equal. •Prop. VI. Tbeor. If two angles uf -a ti ian-1«** •fiu:i! to one another, the sides also which... | |
 | John Gummere - 1814 - 398 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 - 588 sider
...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 be equal. , JL ABC be an isoscefes triangle, of which the side AB is B*o* I. equal... | |
 | John Playfair - 1819 - 350 sider
...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...produced, the angles upon the other side of the base shall also be equal. Let ABC be an isosceles triangle, of which the side AB is equal to AC, and let the straight... | |
 | John Playfair - 1819 - 354 sider
...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...sides be produced, the angles upon the other side of th? base shall also be, equal. Let ABC be an isosceles triangle, of which the side AB is equal t»... | |
 | Euclid - 1822 - 222 sider
...equal (4). PROP- V. THEOR. In an isosceles triangle (BAC) the angles at the base Fig. 18. (due andACB) are equal to one another; and if the equal sides be produced, the angles below the base ( FBC and GCB) shall also be equal. Take any point F in the side produced, cut off AG... | |
 | George Crabb - 1823 - 704 sider
...or legs equal. According to the fifth proposition of the first book of Euclid's elements, the angles at the base of an isosceles triangle are equal to one another. ISOSTE'MONES (Bot.) a name given by Haller to one of his classes of plants. [SO'TONl (Med.) an epithet... | |
 | Peter Nicholson - 1825 - 1046 sider
...opposite shall be equal, each to each. Which was to be demonstrated. Proposition. V. Theorem. The angles at the base of an Isosceles triangle are equal to...equal sides be produced, the angles upon the other iide of the base shall be equal. Let ABC be an Isosceles triangle, of which the side AB is equal to... | |
 | Euclid, John Playfair - 1826 - 326 sider
...eaeh to eaeh. Whieh was to be demonstrated. i PROP. V. THiiOR, The angles at the base of an isoseeles triangle are equal to one another ; and if the equal sides be produeed, the angles upon the other side of the base shall also be equal. Let ABC he an isoseeles triangle,... | |
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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. 
