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" The angles which one straight line makes with another upon one side of i't, are either two right angles, or are together eqval to two right angles. "
Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Σελίδα 19
των Euclid, John Playfair - 1853 - 317 σελίδες
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The First Book of Euclid's Elements: Arranged for Beginners

Euclid, John Bascombe Lock - 1892 - 188 σελίδες
...straight line CD stand upon the straight line ACB ; it is required to prove that the angles ACD, BCD are either two right angles or are together equal to two right angles. BACB The angles ACB, BCD must be either equal or unequal. If the angles ACD, BCD are equal, they are...

Report of the Secretary for Public Instruction ...

Queensland. Department of Public Instruction - 1892 - 508 σελίδες
...lin?. 4. The angles which one straight line makes with another 18 straight line on une side of it, are either two right angles, or are together equal to two right angles. ;">. If two triangles have two sides of the one equal to 20 two sides of the other, each to each, but...

Mathematics: Mechanic's bids and estimates. Mensuration for beginners. Easy ...

Seymour Eaton - 1899 - 362 σελίδες
...13. THEOREM The angles which one straight line makes with another straight line, on one side of it, are either two right angles or are together equal to two right angles. Construction: If ABC is equal to ADD, they are two right angles (definition of a right angle). If ABC...

A Text-book of Euclid's Elements for the Use of Schools. Books I ..., Βιβλίο 1

Euclid, Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 330 σελίδες
...THEOREM. The adjacent angles which one straight line makes with another straight line, on one side of it, are either two right angles or are together equal to two right angles. OB CD BC Lot the straight line AB meet the straight line DC. Then the adjacent angles DBA, ABC shall...

Calendar, for the Year ...

1902 - 170 σελίδες
...1. Shew that the angles, which one straight line makes with another straight line on one side of it, are either two right angles or are together equal to two right angles ; and, if at a point in a straight line, two other straight lines, on opposite sides of it, make adjacent...

A Text-book of Euclid's Elements for the Use of Schools, Βιβλίο 1

Euclid - 1904 - 488 σελίδες
...THEOREM. The adjacent angles which one straight line makes with another straight line, on one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB meet the straight line DC. Then the adjacent angles DBA, ABC shall be either...

Report of the Examinations Conducted by the Council of Higher Education ...

Newfoundland Council of Higher Education - 1911 - 252 σελίδες
...equilateral. (15) A 4. If one straight line stand upon another straight line, show that the adjacent angles are either two right angles or are together equal to two right angles. Prove that the bisectors of the adjacent angles which one straight line makes -with another straight...

Foundations and Fundamental Concepts of Mathematics

Howard Whitley Eves - 1997 - 370 σελίδες
...to a given straight line. 13. Any pair of adjacent angles formed by two intersecting straight lines are either two right angles or are together equal to two right angles. 14. If, at any point on a straight line, two rays, on opposite sides of it, make a pair of adjacent...
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Journal of the Statistical Society of London, Τόμος 8

Royal Statistical Society (Great Britain) - 1845 - 786 σελίδες
...MATHEMATICS. — Senior. \. The angles which one right line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. 2. Define a parallelogram. Parallelograms on the same base and between the same parallels are equal...

Report of the examination held (Dec. 1859)-73

Cowley Oxon, dioc. school - 1860 - 318 σελίδες
...equal to one another. 4. 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. 5. If one side of a triangle be produced, the exterior angle is greater than either of the interior...




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