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 synoptical Euclid; being the first four books of Euclid's Elements of ...

Euclides - 1853 - 146 pages
...inclose a space. 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 Elements of Euclid, books i-vi; xi. 1-21; xii. 1,2; ed. by H.J. Hose, Book 1

Euclides - Geometry - 1853 - 334 pages
...enclose a space. XI. All right angles are equal to one another. XII. If a straight line cut two straight lines, so as to make the two interior angles on the same side of it, when taken together, less than two right angles, then those two straight lines, being continually produced,... ## Orr's Circle of the Sciences: Organic nature, vols. 1-3 (1854-1856)

William Somerville Orr - Science - 1854 - 532 pages
...twelfth axiom, and is thus expressed in Euclid : — AXIOM XII. — 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 prolonged, shall at length meet upon that side on which are the angles that are... ## The Collected Works of Dugald Stewart, Esq. F.R.SS.: Elements of the ...

Dugald Stewart - 1854 - 450 pages
...Elements. When it is asserted, for example, that " if one straight line falls on two other straight lines, so as to make the two interior angles on the same side together equal to two right angles, these two straight lines, though indefinitely produced, will never... ## The Collected Works of Dugald Stewart, Esq. F.R.SS.: Elements of the ...

Dugald Stewart - 1854 - 454 pages
...Elements. When it is asserted, for example, that " if one straight line falls on two other straight lines, so as to make the two interior angles on the same side together equal to two right angles, these two straight lines, though indefinitely produced, will never... ## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855 - 262 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...taken together, less than \ two right angles, these straight lines, being \ continually produced, shall at length meet ' V ' 'L upon that side on which... ## Elements of Geometry: Containing the First Six Books of Euclid with a ...

John Playfair - Geometry - 1855 - 334 pages
...removed from among the Axioms. The 12th Axiom of Euclid is, that " if a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken " which are less than two right angles." Instead of this proposition, which, though true, is by no... ## Mensuration of lines, areas, surfaces, and volumes

Robert Rawson - 1856 - 200 pages
...a space. XI. All right angles are equal to one another. xn. " If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together lesi than two right angles, these straight lines being continually produced, shall at length meet upon... ## Gradations in Euclid : books i. and ii., with an explanatory preface [&c ...

Euclides - 1858 - 248 pages
...angles measured by those equals must themselves be equal. 12. If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken C ^\ t^JD together less than two right angles, these two straight lines, being continually produced,... 