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" If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line. "
The First Six, and the Eleventh and Twelfth Books of Euclid's Elements: With ... - Page 15
by Euclid, James Thomson - 1845 - 352 pages
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Queen's scholarship examination. Amner's eight years' scholarship questions ...

Joseph Wollman - 1879 - 120 pages
...point draw a straight line which shall make equal angles with two straight lines given in position. 31. If at a point in a straight line two other straight lines on opposite sides of it make the adjacent angles together equal to two right angles, these two straight...
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Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879 - 426 pages
...two right angles. Therefore, the angles which one straight line, etc. QED Proposition XIV. Theorem. If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two...
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A complete set of male pupil teachers' examination questions in Euclid [book ...

W J. Dickinson - Geometry - 1879 - 44 pages
...of the bisections of the interior and exterior angles at the base are in the same straight line. 14. If at a point in a straight line two other straight lines, upon the opposite side of it, make the adjacent angles together equal to two right angles ; then these...
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The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - Geometry - 1879 - 282 pages
...ABE-R+ABE, and ABD = EBD -ABE=R- ABE. .•. (Ax. 2)ABC+ABD = 2R g BD Proposition 16. Theorem.—If at a point in a straight line, two other straight lines on opposite sides of it, make the adjacent angles equal to two right angles, these two lines are in the...
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Examination papers, and division lists, &c. [afterw.] General certificate of ...

Oxford univ, local exams - 1880 - 394 pages
...superficies, a square, a parallelogram. What is Euclid's axiom about lines which will meet when produced ? 2. If at a point in a straight line two other straight...equal to two right angles, these two straight lines shall be in one and the same straight line. 3. If there be two straight lines, one of which is divided...
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First principles of Euclid: an introduction to the study of the first book ...

T S. Taylor - 1880 - 152 pages
...(Euclid I. 14). Repeat. — The enunciation of Euc. I. 13 and Axioms 3<z and n. General Enunciation. If, at a point in a straight line, two other straight...adjacent angles together equal to two right angles, those two straight lines shall be in one and the same straight line. The same, in tabular form : GIVEN....
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The Bombay university calendar, Volume 1

Bombay city, univ - 1880 - 750 pages
...of a quadrilateral form a parallelogram. 2. If, at a point in a straight linn, two other straight 10 lines on the opposite sides of it make the adjacent...equal to two right angles, these two straight lines shall be in one and the same straight line. ABCD is a parallelogram whose diagonals meet in O. Show...
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The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ...

Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...angles. T> F BC K. H And because at the point H in the straight line GH, the two straight lines KH, HM, on the opposite sides of it, make the adjacent angles together equal to two right angles, KH is in the same straight line with HM. [I. 14. And because the straight line HG meets the parallels...
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The pupil teachers' handy mathematical and grammatical question-book, with key

Pupil teachers - 1880 - 1494 pages
...of the bisections of the interior and exterior angles at the base are in the same straight line. 14. If at a point in a straight line two other straight lines, upon the opposite side of it, make the adjacent angles together equal to two right angles; then these...
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Euclid for beginners, books i. and ii., with simple exercises by F.B. Harvey

Euclides, Frederick Burn Harvey - Geometry - 1880 - 178 pages
...right side of the figure. - Ie the double angle on the left side of the figure. PROP. XIV. THEOREM. If at a point in a straight line, two other straight lines, upon opposite sides of it, make the adjacent angles together equal to two right angles, then these...
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