Books Books
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.
The First Six Books with Notes - Page 145
by Euclid - 1822 - 179 pages

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - Geometry, Plane - 1860 - 380 pages
...superficies is that which has only length and breadth. VI. The extremities of a superficies are lines. vn. A plane superficies is that in which any two points being taken, tne Straight line between them lies wholly in that suparficies. VHL A plane angle is the inclination...

## The school Euclid: comprising the first four books, by A.K. Isbister

Euclides - 1862 - 172 pages
...superficies is that which hath only length and breadth. VI. The extremities of a superficies are lines. VII. A plane superficies is that in which any two points...line between them lies wholly in that superficies. VIII. ' A plane angle is the inclination of two lines to one another in a plane, which meet together,...

## The elements of plane geometry; or, The first six books of Euclid, ed. by W ...

Euclides - 1863 - 122 pages
...superficies is that which has only length and breadth. VI. The extremities of a superficies are lines. VII. A plane superficies is that in which any two points...line between them lies wholly in that superficies. VIII. A plane angle is the inclination of two lines to one another in a plane, which meet together,...

## The Analogy of Thought and Nature

Edward Vansittart Neale - Natural law - 1863 - 280 pages
...line, which will be considered below. (4) The force of the ancient definition of a plane surface, viz., "that in which, any two points being taken, the straight line between them lies wholly in that surface," becomes apparent. Trendelenberg has suggested that the thought of a plane surface is obtained...

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

Euclides - 1863 - 74 pages
...thickness. 6. The extremities of a superficies are lines. 7. A plane surface, (planus, level, flat,) is that in which any two points being taken, the straight line joining them lies wholly in that surface. — HERON. „ " A plane surface is that which lies evenly,...

## Euclid's Elements of geometry, the first four books, by R. Potts. Corrected ...

Euclides - 1864 - 262 pages
...breadth. VI. The extremities of a superficies are lines. VII. A plane superficies is that in which any *wo points being taken, the straight line between them lies wholly in that superficies. VIII. A plane angle is the inclination of two lines to each other in a plane, which meet together,...

## The school edition. Euclid's Elements of geometry, the first six books, by R ...

Euclides - 1864 - 448 pages
...breadth. VI. The extremities of a superficies are lines. vn. A plane superficies is that in which any +wo points being taken, the straight line between them lies wholly in that superficies. VIII. A plane angle is the inclination of two lines to each other in a plane, which meet together,...

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson ...

Robert Potts - 1865 - 528 pages
...superficies is that which has only length and breadth. VI. The extremities of a superficies are lines. vn. A plane superficies is that in which any two points...line between them lies wholly in that superficies. VIII. A plane angle is the inclination of two lines to each other in a plane, which meet together,...