| Euclides - 1838 - 264 pages
...four straight lines. XIX. Multilateral figures, or polygons, by more than four straight lines. XX. **Of three-sided figures, an equilateral triangle is that / \ which has three equal sides.** ^/ \^ XXI. An isosceles triangle is that which has two sides equal. XXII. A scalene triangle is that... | |
| Robert Simson - Geometry - 1838 - 434 pages
...figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four straight lines. XXIV. Of** three sided figures, an equilateral triangle is that which has three equal sides. XXV. An isosceles... | |
| Euclides - 1841 - 378 pages
...or triangles, by three straight lines. XXII. Quadrilateral figures, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...A scalene triangle is that which has three unequal** sides. XXVII. A right-angled triangle is that which has a right angle. XXVIII. An obtuse angled triangle... | |
| Euclides - 1842 - 320 pages
...figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...A scalene triangle is that which has three unequal** sides. XXVII. A right-angled triangle is that which has a right angle. XXVIII. An obtuse-angled triangle... | |
| William Pease - Geometry - 1843 - 80 pages
...60 degrees. The three angles of any triangle, are together equal to two right angles or 180 degrees. **XXV. An isosceles triangle is that which has only two sides equal.** Two of its angles are equal, namely, those opposite to the equal sides. XXVI. A scalene triangle is... | |
| Euclid - Geometry - 1845 - 218 pages
...contained by straight lines. XXI. Trilateral figures, or triangles, by three straight lines. XXII. XXIII. **Multilateral figures, or polygons, by more than four...scalene triangle, is that which has three unequal** sides. XXVII. A right-angled triangle, is that which has a right angle. XXVIII. An obtuse-angled triangle,... | |
| Euclides - 1845 - 544 pages
...figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...sides. XXV. An isosceles triangle is that which has** two sides equal. XXVI. A. scalene triangle is that which has three unequal sides. XXVII. A right-angled... | |
| Great Britain. Admiralty - Geometry - 1846 - 130 pages
...figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...A scalene triangle is that which has three unequal** sides. XXVII. A right-angled triangle is that which has a right angle; and the side opposite the right... | |
| Great Britain. Admiralty - Geometry - 1846 - 130 pages
...figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...triangle is that which has three equal sides. XXV.** XXVI. A scalene triangle is that which has three unequal sides. XXVII. A right-angled triangle is that... | |
| Euclides - 1846 - 292 pages
...Multilateral figures, or polygons, by more than four straight lines : Of three-sided figures, xxiv. **An equilateral triangle is that which has three equal...sides : xxv. An isosceles triangle is that which has** two sides equal : xxvi. A scalene triangle is that which has three unequal sides : xxvu. A right-angled... | |
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