 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...&c. COR.—Hence every equilateral equiangular. PROP. V. THEOR. OTHERWISE DEMONSTRATED. The angles at the base of an isosceles triangle are equal to one another. Let ABC be an isosc. /£\, having the side AB = side AC; then will L ABC = L ACB. Let the str. line... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...COR.—Hence every equilateral ^±» is also equiangular. PROP. V. THEOR. OTHERWISE DEMONSTRATED. The angles at the base of an isosceles triangle are equal to one another. Let ABC be an isosc. Z\, having the side AB = side AC; then will L ABC = L ACB. A Let the str. line... | |
 | 1847 - 486 pages
...each of them is called a straight line." Now this is true enough ; and so is it true that " the angles at the base of an isosceles triangle are equal to one another ;" but the latter he thinks worthy of a labored demonstration. Many a poor wight would have thanked... | |
 | Euclides - 1848 - 52 pages
...equal, each to each, viz. those to which the equal sides are opposite. PROP. V. THEOREM. 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. COR. Hence every equilateral triangle is also equiangular.... | |
 | Education - 1848 - 542 pages
...Geometry," &c. page 21. 3. 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 side of the base shall be equal. — See " Bell's Euclid," prop. v. book i. ; or " Tate's Geometry," &c. arts. 18 and... | |
 | Great Britain. Council on Education - Education - 1848 - 532 pages
...superficies, and a circle. 3. 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 side of the base shall be equal. Section 2. 1. Prove that the sum of the three angles of a triangle equals two right... | |
 | Great Britain. Council on Education - Education - 1848 - 596 pages
...another upon one side of it are either two right angles, or are together equal to two right angles. 2. The angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight lines. State the axiom which you assume respecting such lines;... | |
 | J. Goodall, W. Hammond - 1848 - 390 pages
...another upon one side of it, are either two right angles, or are together equal to two right angles. 2. The angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight lines. State the axiom which you assume respecting such lines... | |
 | Great Britain. Committee on Education - Education - 1848 - 514 pages
...point within it. 3. The angles at the base of an isosceles triangle are equal to each other, and if tho equal sides be produced the angles on the other side of the base shall be equal. Section 2. 1. Prove that the sum of the three angles of a triangle equals two right... | |
 | Great Britain. Committee on Education - 1848 - 606 pages
...another upon one side of it are either two right angles, or are together equal to two right angles. 2. The angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight lines. State the axiom which you assume respecting such lines... | |
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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. 
