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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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## Euclid's plane geometry, practically applied; book i, with explanatory notes ...

Euclides - 1863
...plane rectilineal angle (reclus, straight, and linen, a thread), is the inclination of two straight lines to one another, which meet together, but are not in the same straight line., The magnitude of the angle is altigeth'er independent of the length of the lines...
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## The school edition. Euclid's Elements of geometry, the first six books, by R ...

Euclides - 1864
...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. I) NB If there be only one angle at a point, it may be expressed by a letter placed...
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## The College Euclid: Comprising the First Six and the Parts of the Eleventh ...

Euclides - 1865
...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 acute angle is that which is less than a right _ angle. XIII. A term or boundary...
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## An English primer; compiled under the superintendence of E.C. Lowe

Edward Clarke Lowe - 1866
...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. 10. When a straight line standing on another straight line makes the adjacent angles...
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## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1867 - 400 páginas
...but are not in the same direction. 9. A plane rectilineal angle is the inclination of two Btraight lines to one another, which meet together, but are not in the same straight line. Note. When several angles are at ene point B, any one of them is expressed by three...
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## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1868 - 410 páginas
...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. g, NB If there be only one angle at a point, it may be expressed by a letter placed...
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## Elementary mensuration

Septimus Tebay - 1868 - 115 páginas
...them lies wholly in that superficies. 7. 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. TM 1 f. Thus, the angle at A is contained by the two straight lines AB, AC ; and...
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## Mensuration for Beginners: With Numerous Examples

Isaac Todhunter - 1869 - 296 páginas
...only consider lines and figures on a plane surface. 4. An angle is the inclination of two straight lines to one another which meet together, but are not in the same Thus the two straight lines AO, BO, which meet at O, form an angle there. The angle is not altered...
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## Explanatory mensuration for the use of schools

Alfred Hiley - 1871
...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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## The Quadrature of the Circle: The Square Root of Two, and the Right-angled ...

William Alexander Myers - 1873 - 164 páginas
...but are not in the same direction. 22. 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. 23. A THEOREM is a truth requiring demonstration. 24. An AXIOM is a self-evident...
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