Libros Libros Straight lines 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 to two right angles. Elements of Geometry: Containing the First Six Books of Euclid with a ... - Página 29
por John Playfair - 1855 - 318 páginas
Vista completa - Acerca de este libro ## The Student's Handbook to the University and Colleges of Cambridge

1902
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Vista de fragmentos - Acerca de este libro ## Elementary Geometry: Practical and Theoretical

Charles Godfrey, Arthur Warry Siddons - 1903 - 355 páginas
...are acute. (iii) London Bridge is a stone bridge. (iv) A nigger is a man with woolly hair. THEOREM 6. Straight lines which are parallel to the same straight line are parallel to one another. ~T fig. 89. Data AB, CD are each || to XY. To prove that AB is || to CD. Construction Draw a st. line...
Vista completa - Acerca de este libro ## A Text-book of Euclid's Elements for the Use of Schools, Libro 1

Euclid - 1904 - 456 páginas
...angle GHD ; that is, the alternate angles AGH, GHD are equal. QED /^ / /£ PROPOSITION 30. THEOREM. Straight lines which are parallel to the same straight line are parallel to one another. J K/ F/ Let the straight lines AB, CD be each parallel to the straight line PQ. Then shall AB and CD...
Vista completa - Acerca de este libro ## The Elements of Solid Geometry

Charles Davison - 1905 - 122 páginas
...is perpendicular to the plane X. 20 SOLID GEOMETRY PARALLEL LINES IN DIFFERENT PLANES. 16. PROP. 15. Straight lines which are parallel to the same straight line are parallel to one another. L Let AB and CD be both parallel to LM ; to prove that AB is parallel to CD. Let X represent a plane...
Vista completa - Acerca de este libro ## Calendar, Parte1

University of Calcutta - 1907
...the same side of the line supplementary, then the two straight lines are parallel ; and the converse. Straight lines which are parallel to the same 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....
Vista completa - Acerca de este libro ## Calendar

...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 line are parallel to one another., TBIANGLES AUD EECTILINBAL FIGUBES. The sum of the angles of a triangle is equal to two right anglesIf...
Vista completa - Acerca de este libro ## Calendar

...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 line are parallel to one another. TBIANGLES AND EECTILINEAL FIGUBES. The sum of the angles of a triangle is equal to two right angles....
Vista completa - Acerca de este libro ## A School Geometry, Partes1-4

Henry Sinclair Hall - 1908
...PARALLELS ILLUSTRATED BY ROTATION. HYPOTHETICAL CONSTRUCTION ---------- 39 THEOREM 15. [Euc. I. 30.] Straight lines which are parallel to the same straight line are parallel to one another. 40 Triangles continued. THEOREM 16. [Euc. I. 32.] The three angles of a triangle are together equal...
Vista completa - Acerca de este libro ## ATTI DEL IV CONGRESSO INTERNAZIONALE DEI MATEMATICI

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Vista de fragmentos - Acerca de este libro ## The Ontario High School Geometry: Theoretical

Alexander H. McDougall - 1910 - 302 páginas
....-. straight lines which are parallel to the same straight line are not intersecting lines, ie : — Straight lines which are parallel to the same straight line are parallel to each other. THEOREM 8 If a transversal cuts two parallel straight lines, the alternate angles are equal...
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