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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.
A Treatise on Surveying, Containing the Theory and Practice: To which is ... - Page 25
by John Gummere - 1814 - 346 pages

## Pocket Encyclopedia: Or, A Dictionary of Arts, Sciences, and ..., Volume 1

Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 962 pages
...into plane, spherical, and solid. Angle, a plane, rectilineal, is the inclination of two •traight lines to one another, which meet together, but are not in the same straight line. See Fig. 6. Angle, spherical, is an angle formed on the surfac* of a sphere by the intersection of...

## Pantologia. A new (cabinet) cyclopędia, by J.M. Good, O. Gregory ..., Volume 5

John Mason Good - 1813 - 714 pages
...of two lines te one another in a plnne, which meet together, tut are not in the same direction." 9. A plane rectilineal angle is the inclination of two straight lines to or.e another, which meet together, but are not in the same straight line. 10. When a straight line...

## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclides - 1816 - 592 pages
..." ther in a plane, which meet together, but are not in the " same direction." ••••'i " IX, A plane rectilineal angle is the inclination of two...which meet together, but are not in the same straight lice. ': ".!,j ii. , •'• .. B •'•••-.• ' ii5 BOOK I. XXVI. A scalene triangle, is that...

## Encyclopaedia Perthensis; Or Universal Dictionary of the Arts ..., Volume 10

Encyclopedias and dictionaries - 1816 - 764 pages
...them lies wholly in that fupcrficies. 6. A PLANE RECTILINEAL ANGLE is the inclination of two ftraight lines to one another, which meet together, but are not in the fame ftraight line. Fig- i. Nate. When feveral angles are formed at the fame point, as at B, fig. 3....

## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Circle-squaring - 1819 - 348 pages
...which any two points being taken, the straight line between them lies wholly in that superficies. VI. A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line. ' The definitions marked with inverted commas are different from those of Euclid. c BC NB ' When several...

## Pantologia. A new (cabinet) cyclopędia, by J.M. Good, O. Gregory ..., Volume 5

John Mason Good - 1819 - 800 pages
...not in the same direction.1' 9. Л plane rectilineal angle is the inclination of two straight line» to one another, which meet together, but are not in the same straight line. 10. When a straight line standing on another straight line mates ;he adjacent angles equal to one another,...

## Elements of Geometry: Containing the First Six Books of Euclid: With a ...

John Playfair - 1819 - 354 pages
...meeting of the other lines than straight Knes. A plane angle is said to be " the inclination of two lines to " one another which meet together, but are not in the same direc" tion." This definition is omitted here, because that the angles formed by the meeting of curve...

## A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - Mathematics - 1825 - 1058 pages
...of two lines to one another in a plane, which meet together, but are not in the same direction." p. A plane rectilineal angle is the inclination of two...which meet together, but are not in the same straight «ine. NB ' When several angles are at one point B, any one of them is expressed by three letters,...