If the sides of a convex polygon are produced in order, the sum of the angles so formed is equal to four right angles. Calendar - Page 118by University of Calcutta - 1907Full view - About this book
| James Hervey Hyslop - Logic - 1899 - 280 pages
...denied. I give an illustration of its method from mathematics. Suppose I am asked to prove that the sum **of the angles of a triangle is equal to two right angles. If** now I can show either by observation or proof that the sum of the angles of a triangle is equal to... | |
| Thomas Franklin Holgate - Geometry - 1901 - 462 pages
...the exterior angles, on the same side, are supplementary. § 95. 11. THEOREMS ON CONVEX POLYGONS. (2) **If the sides of a convex polygon are produced in order, the** exterior angles so formed are together equal to four right angles. §117. 12. THEOREMS ON PARALLELOGRAMS.... | |
| Charles Godfrey, Arthur Warry Siddons - Geometry - 1903 - 384 pages
...angles are right angles. DBF. A plane figure bounded by straight lines is called a polygon. THEOREM 9. **If the sides of a convex polygon are produced in order,...the angles so formed is equal to four right angles.** r .>—s y. ;R fig. 95. Data ABODE is a convex polygon; its sides are produced in order and form the... | |
| Education - 1903 - 692 pages
...line «« parallel to one another. Triangles and Rectilinear Figures. — The sum of the angles of > **triangle is equal to two right angles. If the sides of a convex polygon are produced in order, the** *"> of the angles so formed is equal to four right angles. If two triangles have two sides of the one... | |
| Ed - 1905 - 272 pages
...ensure a yearly income of ¿200 ? GEOMETRY. — PART I. (Time allowed, z\ hours) (1) Prove that the sum **of the angles of a triangle is equal to two right angles. If the** interior angle of a regular polygon is 140°, calculate the number of sides. (2) If two triangles have... | |
| University of Allahabad - 1907 - 528 pages
...AUD EECTILINBAL FIGUBES. The sum of the angles of a triangle is equal to two right anglesIf the side **of a convex polygon are produced in order the sum...the angles so formed is equal to four right angles.** If two triangles have two sides of the one equal to two sides of the other, each to each, and also... | |
| University of Allahabad - 1908 - 568 pages
...parallel to the same straight line are parallel to one another. TBIANGLES AND EECTILINEAL FIGUBES. The sum **of the angles of a triangle is equal to two right angles. If the** side of a convex polygon are produced in order the sum of the angles so formed is equal to four right... | |
| Mathematics - 1909 - 605 pages
...which are parallel to the same straight line are parallel to one another. Triangles and Rectilinear **Figures. The sum of the angles of a triangle is equal...the angles so formed is equal to four right angles.** If two triangles have two sides of the one equal to two sides of the other, each to each, and also... | |
| University of Allahabad - 1909 - 638 pages
...which are parallel to the same straight line are parallel to one another. TRIANGLES AND RECTILINEAR **FIGURES. The sum of the angles of a triangle is equal...sides of a convex polygon are produced in order the** sura of the angles so formed is equal to four right angles. If two triangles have two sides of the... | |
| University of Allahabad - 1910 - 682 pages
...pair of interior angles on the same side of the cutting line are together equal to two right angles, **then the two straight lines are parallel ; and the...the angles so formed is equal to four right angles.** If two triangles have two sides of the one equal to two sides of the other, each to each, and also... | |
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