Books Books If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles... The Elements of Euclid [book 1] for beginners, by J. Lowres - Page 10
by Euclides - 1852 ## The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - Geometry - 1846 - 130 pages
...enclose a space. XI. All right angles are equal to one another. XII. If a straight line meet two straight lines, so as to make the two interior angles on the...taken together, less than two right angles, these straight lines, being continually produced, shall at length meet upon that side on which are the angles... ## The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - Geometry - 1846 - 130 pages
...enclose a space. XI. All right angles are equal to one another. XII. If a straight line meet two straight lines, so as to make the two interior angles on the...taken together, less than two right angles, these straight lines, being continually produced, shall at length meet upon that side on which are the angles... ## The Elements of Euclid, the parts read in the University of Cambridge [book ...

Euclides - 1846 - 292 pages
...angles BEF, EFD are together less than two right angles : But If a straight line meets two straight lines, so as to make the two interior angles on the same side of it together less than two right angles, these straight lines, being continually produced, shall at length... ## The First Book of Euclid's Elements, Simplified, Explained, and Illustrated ...

Euclides - 1847 - 128 pages
...right angles are equal to one another. (See Definition 10.) 12. If a straight line meets two straight lines, so as to make the two interior angles on the...taken together, less than two right angles, these straight lines, being continually produced, shall at length meet upon that side on which are the angles... ## The definitions, postulates, axioms, and enunciations of the propositions of ...

Euclid - 1848 - 52 pages
...inclose a space. XI. All right angles are equal to one another. XII. If a straight line meet two straight lines, so as to make the two interior angles on the...it taken together less than two right angles, these straight lines being continually produced, shall at length meet upon that side on which are the angles... ## The first three books of Euclid's Elements of geometry, with theorems and ...

Euclid, Thomas Tate - 1849 - 120 pages
...a space. XI. All right angles are equal to one another. XIL " If a straight line meets two straight lines, so as to make the two interior angles on the...it taken together less than two right angles, these straight lines being continually produced, shall at length meet upon that side on which are the angles... ## Prolegomena Logica: An Inquiry Into the Psychological Character of Logical ...

Henry Longueville Mansel - Logic - 1851 - 350 pages
...principles, " two straight lines cannot enclose a space," or, " if a straight line meets two straight lines, so as to make the two interior angles on the same side together less than two right angles, the two straight lines will meet if produced." As a matter of... ## The first two books of the Elements of Euclid, with additional figures ...

Euclides - 1852 - 152 pages
...space.] XI. All right angles are equal to one another. XII. " If a straight line meets two straight lines, so as to make the two interior angles on the...it taken together less than two right angles, these straight lines being continually produced, shall at length meet upon that side on which are the angles... ## The first six books of the Elements of Euclid, with numerous exercises

Euclides - 1853 - 176 pages
...a space. XI. All right angles are equal to one another. XII. If a straight line meets two straight lines, so as to make the two interior angles on the...it taken together less than two right angles, these straight lines being continually produced, shall at length meet upon that side on which are the angles... 