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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 plane geometry, from the Sansk. text of Ayra Bhatta, ed. by ...

Āryabhaṭa - 1878
...point, but do not cut one •ther. XV. 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. NB In the figure subjoined B is an angle and is thus expressed : " Angle AB 0."...
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Euclid, books i. & ii., with notes, examples, and explanations, by a late ...

Euclides - 1879
...not required in the first two books.] 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. [Thus the inclination of the lines OA, OB is called the angle AOB, or BOA, or the...
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Explanatory Mensuration

Alfred Hiley - 1879 - 188 páginas
...within. fewer than three straight lines. X. 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. Thus the two straight lines CA and BA, meeting together at the point A, make the...
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Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879
...are not in the same straight line. 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. ANB — When several angles are at one point, B, either of them is expressed by...
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The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ...

Isaac Todhunter - 1880 - 400 páginas
...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. Note. When several angles are at one point B, any one of them is expressed by three...
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Education, Volumen21

1901
...I. DEFINITION OF AN ANGLE. Euclid : " 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." Modern writers define this concept variously. Davies : " An angle is the amount...
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Education, Volumen21

1900
...Euclid. I. DEFINITION OF AN ANGLE. Euclid: "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." Modern writers define this concept variously. Davies : " An angle is the amount...
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The American Journal of Education, Volumen32

Henry Barnard - 1882
...Euclid's definition is of little use. "A plane rectilineal angle is the inclination of two straight ! ٭w }" D+ O Tډ o ݾ= 8 o P o E k- 0 W ^ )O same straight line." For, replies the boy, "What is the meaning of ' the inclination of two straight...
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Class lessons on Euclid

Marianne Nops - 1882
...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.' Def. S includes angles formed by two curved lines, or a straight and a curved...
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American Journal of Education, Volumen32

1882
...Euclid's definition is of little use. "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." For, replies the boy, "What is the meaning of 'the inclination of two straight...
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