 | Euclides - 1879 - 146 pages
...surface] is that which has only length and breadth. 6. The extremities of a superficies are lines. B 7. A plane superficies is that in which any two points...line between them lies wholly in that superficies. [All these seven def1nitions express abstract ideas (you will remember the force of the word abstract... | |
 | Moffatt and Paige - 1879 - 378 pages
...SECTION I. (One question.) (a) Define a plane superficies, an isosceles triangle, and an oblong. . A plane superficies is that in which, any two points...line between them lies wholly in that superficies. (6) Explain the term Axiom: write out the eleventh axiom ; in which proposition is this axiom first... | |
 | Euclides, Frederick Burn Harvey - Geometry - 1880 - 178 pages
...surface. A. superficies is denoted by letters placed at its sides, or extremities. 6. THE EXTREMITIES OP A SUPERFICIES are lines. 7. A PLANE SUPERFICIES is...line between them lies wholly in that superficies. A Plane Superficies is sometimes called ' A Plane.' A brick has six plane superficies, or surfaces.... | |
 | Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...that which has only length and breadth. 6. The extremities of a superficies are lines. . 7. A piano superficies is that in which any two points being...between them lies wholly in that superficies. 8. A plane angle is the inclination of two lines to one another in a plane, which meet together, but are not in... | |
 | Nautical astronomy - 1880 - 880 pages
...RIGHT LINE, is the shortest distance between the two points vvnich limit its length, as AC. 4 с III. A PLANE SUPERFICIES is that in which any two points...the straight line between them lies wholly in that surface. IV. PARALLEL LINES are such as are in the same plane, and which, A Я extended infinitely,... | |
 | Marianne Nops - 1882 - 278 pages
...its extreme points.' 5. 'A superficies or surface is that which has only length and breadth.' G. ' The extremities of a superficies are lines.' 7. '...line between them lies wholly in that superficies.' (This is the carpenter's test, trying a flat surface with a straight edge.) The ideas which are formulated... | |
 | Education - 1882 - 676 pages
...got from the fir. Euclid. I. A straight line is that which lies evenly between its extreme points. A plane superficies is that in which, any two points...line between them lies wholly in that superficies. An obtuse angle is that which is greater than a right angle. A circle is a plane figure contained by... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 428 pages
...straight line is that which lies evenly between its extreme points. 5. A superficies is that which has only length and breadth. 6. The extremities of a superficies...line between them lies wholly in that superficies. 9. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together,... | |
 | Euclides - 1883 - 176 pages
...lines, and the intersection of one superficies with another is a line. 5. A plane superficies, or plane, is that in which any two points being taken, the straight...line between them lies wholly in that superficies. This is the test of planeness which we usually employ to find if there are inequalities in a surface... | |
 | Euclides - 1884 - 182 pages
...straight line joining them be called? 4. SURFACES. 5. A superficies, or surface, is that which has only length and breadth. 6. The extremities of a superficies...two points being taken, the straight line between lies wholly in that superficies. The words ' superficies ' and ' surface ' are two words both derived... | |
| |
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. 
