| Euclides - 1847 - 128 pages
...angulus; and many.sided figures, polygons, from the Greek words iro\v£, many, and yiavia, an angle. 23. **Of three.sided figures, an equilateral triangle is that which has three equal sides.** 24. An isosceles triangle is that which has only two sides equal. The word isosceles is derived from... | |
| Euclides - 1848 - 52 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... | |
| Euclid, Thomas Tate - 1849 - 120 pages
...figures, or triangles, by three straight lines. xxn. Quadrilateral, by four straight lines. XXIII. **Multilateral figures, or polygons, by more than four...isosceles triangle is that which has only two sides equal.** A XXVI. A scalene triangle, is that which has three unequal sides. xxvn. A right angled triangle, is... | |
| Euclides - 1852 - 152 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. [Observe that an equilateral triangle must be isosceles, B 4 BOOK I. BOOK I. but that... | |
| Euclides - 1853 - 146 pages
...Trilateral figures, or triangles, by three straight lines. mi. 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... | |
| Euclides - 1853 - 176 pages
...three straight lines. XXII. Quadrilateral, by four straight lines. XXIII. Multilateral figures, от **polygons, by more than four straight lines. XXIV....triangle is. that which has only two sides equal.** Equilateral. Isosceles. Scalene. XXVI. A scalene triangle is that which has three unequal sides. XXVII.... | |
| Royal Military Academy, Woolwich - Mathematics - 1853 - 400 pages
...by four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. 24. **Of three-sided figures, an equilateral triangle is that which has three equal sides.** 25. An isosceles triangle is that which has two sides equal. 26. A scalene triangle is that which has... | |
| Euclides - 1855 - 262 pages
...Mutilateral [that is, many-sided] figures, or polygons, [that is, manyangled, are those which are contained] **by more than four straight lines. XXIV. Of three-sided figures, an equilateral** [that is, equal-sided] triangle is that which has three equal sides. XXV. An isosceles [that is, equal-kgged... | |
| William Pease - 1856 - 108 pages
...polygon. The three angles of any triangle are together equal to two right angles, or 180 degrees. 44*. **Of three-sided figures, an Equilateral Triangle is that which has three equal sides.** Its three angles are also equal to one another, and each contains 60 degrees. 45*. An Isosceles Triangle... | |
| Robert Potts - Geometry, Plane - 1860 - 380 pages
...Trilateral figures, or triangles, by three straight lines. XXII. Quadrilateral, by four straight lines. xxm. **Multilateral figures, or polygons, by more than four...sides. XXV. An isosceles triangle is that which has** two sides equal. XXVL A scalene triangle is that which has three unequal sides. xxvn. A right-angled... | |
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