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" The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. "
Guide to the civil service examinations [by H. White]. By H. White - Pągina 47
per Henry White - 1856
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Elements of Geometry and Conic Sections

Elias Loomis - 1849 - 252 pągines
...to each other. be proved that the angle ACD is equal to the angle EGH, PROPOSITION II. THEOREM. 77/o angles which one straight line makes with another,...angles, or are together equal to two right angles. if not, suppose the line BE to be drawn from the point B, perpendicular to CD; then will each of the...
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The first three books of Euclid's Elements of geometry, with theorems and ...

Euclid, Thomas Tate - 1849 - 120 pągines
...'Which was to be done. PROP. XIII. THEOR. The angles which one straight line makes with another upon the one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD; these are either two...
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The English Journal of Education, Volum 4

1850 - 488 pągines
...Describe the rise, and trace to its present position, the Order of Jesuits. GEOMETRY. SECTION I. 1. The angles which one straight line makes with another...angles, or are together equal to two right angles. 3. If two triangles have two sides of the one equal to two sides of the other, each to each, but the...
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Minutes of the Committee of Council on Education, Volum 1

Great Britain. Committee on Education - 1850 - 790 pągines
...using it. 3. Investigate the prismoidal formula. GEOMETRY. Secfion 1. 1. The angles which one right line makes with another upon one side of it are either...angles, or are together equal to two right angles. 2. If one side of a triangle be produced, the exterior angle is greater than either of the two interior...
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Papers for the Schoolmaster, Volum 2

1852 - 316 pągines
...our religious as well ai temporal well-being. WB EXAMINATION PAPER FOR PUPIL TEACHERSEUCLID PAPER, I. The angles which one straight line makes with another...angles, or are together equal to two right angles. II. In any right angled triangle, the square which is described upon the side subtending the right...
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Papers for the schoolmaster, Volums 1-6

582 pągines
...Jamaica, or Hindostan, •with a map. shewing the chief rivers and towns. EUCLID. Prop. xiii. The anglrs which one straight line makes with another upon one...angles, or are together equal to two right angles. Prop, vi If two angles of a triangle be equal to each other, the sides also which subtend, or are opposite...
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An Epitome of Navigation and Nautical Astronomy, with Improved Lunar Tables ...

Janet Taylor - 1851 - 674 pągines
...INTRODUCTION. THEOREMS. Theorem 1. [Euclid i. 13.] If one line falls on another the angles it makes with it are either two right angles, or are together equal to two right angles. Let AB meet the line DC, then the angles CDB CDA taken together are equal to two right angles. For...
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The first two books of the Elements of Euclid, with additional figures ...

Euclides - 1852 - 152 pągines
...viii. 1. BOOK I. PROP. XIII. THEOR. The angles which one straight line makes with another upon the one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD: these are either two...
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The popular educator, Volums 1-2;Volum 5

Popular educator - 1852 - 842 pągines
...from Prop. XIII., Book I., which asserts that the anglet which one straight line mates with anoiJier upon one side of it, are either two right angles, or are together equal to two right any/is. The proof of the latter proposition is very easy ; for by referring to figs. 12 and 13, it...
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The first six books of the Elements of Euclid, with numerous exercises

Euclides - 1853 - 178 pągines
...has been drawn to the given straight line a b. Which was to be done. PROPOSITION XIII. — THEOREM. The angles which one straight line makes with another...angles, or are together equal to two right angles. LET the straight line ab make with cd, upon one side of it, the angles cba, abd : these are either...
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