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A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Elements of Geometry: Containing the Principal Propositions in the First Six ... - Página 247
por Euclid - 1789 - 272 páginas
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## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1883 - 400 páginas
...them lies wholly in that superficies. 9. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Note. When several angles are at one point B, any one of them is expressed by three...
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## New Englander and Yale Review, Volumen42

...plane rectilineal angle is, according to Euclid (Todhunter's ed.) "the inclination of two straight lines to one another which meet together but are not in the same straight line" — a definition which limits the angle to less than two right angles. Of definitions,...
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## Geometry for schools, comprising books i. and ii. of Euclid, with some ...

Euclides - 1883 - 96 páginas
...of the angle. Note. — Euclid defines a plane rectilineal angle as "the inclination of two straight lines to one another, which meet together, but are not in the same straight line." Here the synonym for angle, "the inclination of two straight lines," has this...
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## The text of Euclid's geometry, book 1, uniformly and systematically arranged ...

Euclides - 1884
...but are not in the same direction. IX. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same direction. X. When a straight line, standing on another straight line, makes the adjacent angles...
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## Stewart's specific subjects. Euclid. [1st] (-3rd stage). [With 2 issues of ...

Stewart W. and co - 1884
...but are not in the same direction. IX. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. An angle is named from three or one letters, as ABC or B. X. When a straight line...
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## An introduction to geometry, consisting of Euclid's Elements, book ..., Volumen1

Euclides - 1884
...but are not in the same direction. 9. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Notice three points in which this last definition differs from the one before it....
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## Practical Surveying: A Text-book for Students Preparing for Examinations Or ...

George William Usill - 1889 - 272 páginas
...straight lines. 3 Plane Rectilineal Angle.— A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Note. — When an angle is simply spoken of, a plane rectilineal angle is always...
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## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 páginas
...but are not in the same direction. g. A Plane Rectilineal Angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. 10. When a straight line standing on another straight line makes the adjacent angles...
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## Manual of Plane Geometry: On the Heuristic Plan, with Numerous Extra ...

George Irving Hopkins - 1891 - 179 páginas
...lines all lie in the same plane. 17. "A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line." —EUCLID. " An angle is a figure formed by two straight lines drawn from the...
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## A history of elementary mathematics

Florian Cajori - 1896 - 304 páginas
...might be readily proved from the axioms. He defines a plane angle as the " inclination of two straight lines to one another, which meet together, but are not in the same straight line," but leaves the idea of angle magnitude somewhat indefinite by his failure to give...
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