| Great Britain. Board of Education - Education - 1912 - 1048 pages
...together equal to two right angles, then the two straight lines are parallel ; and the converse. 4. **Straight lines which are parallel to the same straight...to one another. Triangles and Rectilinear Figures.** 5. The sum of the angles of a triangle is equal to two right angles. 6. If the sides of a convex polygon... | |
| University of Calcutta - 1914 - 430 pages
...corresponding angles equal, (iii) the interior angles on the same side of the line supplementary, then the **two straight lines are parallel ; and the converse....straight line are parallel to one another. Triangles and** rectilineal figures. The sum of the angles of a triangle is equal to two right angles. If the sides... | |
| University of Allahabad - 1914 - 752 pages
...angles on the ваше side of the cut' ting line are together equal to two right angles, then the **two straight lines are parallel ; and the converse....Straight lines which are parallel to the same straight** Hoe are parallel to one another. TRIANGLES AND RECTILINEAL FIGURES. The sum of the angles of a triangle... | |
| Education - 1915 - 816 pages
...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 converse....parallel to one another. Triangles and rectilinear** figure». — The sum of the angles of a triangle ie equal to two right angles. If the sides of a convex... | |
| John Wesley Young, Albert John Schwartz - Geometry, Modern - 1915 - 252 pages
...connection with a drafting board (see Fig. 1, p. 1) or a draftsman's triangle (see Fig. 29). 81. Two **straight lines which are parallel to the same straight line are parallel to** each FIG. 29. other. 82. A straight line which is perpendicular to one of two parallel lines is perpendicular... | |
| Edith Long, William Charles Brenke - Geometry, Modern - 1916 - 292 pages
...corner, also from mid-point of side to mid-point of side, as shown in the figure. Assuming that the **lines which are parallel to the same straight line are parallel to** each other no matter whether they are all in the same plane or not, prove the following statements... | |
| Edith Long, William Charles Brenke - Geometry, Plane - 1916 - 292 pages
...corner, also from mid-point of side to mid-point of side, as shown in the figure. Assuming that the **lines which are parallel to the same straight line are parallel to** each other no matter whether they are all in the same plane or not, prove the following statements:... | |
| University of Allahabad - 1918 - 888 pages
...ssme side of the cutting line are together equal to two right angles, then the two straight lilies **are parallel ; and the converse. Straight lines which...straight line are parallel to one another. TRIANGLES AND** RECTILINEAL FIGURES. The sum of the angles of a triangle is equal to two right angles. If the side... | |
| Arthur Warry Siddons, Reginald Thomas Hughes - Geometry - 1926 - 202 pages
...angles on the same side of the cutting line are together equal to two right angles . . . .10 JTHEOREM 6. **Straight lines which are parallel to the same straight line are parallel to one another** 11 JTHEOREM 7. If straight lines are drawn from a point parallel to the arms of an angle, the angle... | |
| University of Oxford - Universities and colleges - 1913 - 386 pages
...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 converse....the same straight line are parallel to one another.** If there are three or more parallel straight lines, and the intercepts made by them on any straight... | |
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