 | Isaac Newton Failor - Geometry - 1906 - 431 pages
...surface such that the straight line which joins any two of its points lies wholly in the surface. 55 A curved surface is a surface no part of which is plane. 56 Geometry is the science of position, magnitude, and form. FIGURES 57 A geometric figure is any combination... | |
 | Edward Rutledge Robbins - Geometry - 1907 - 428 pages
...ANGLES IN SPACE 481. A solid is any limited portion of space. The boundaries of a solid are surfaces. A plane is a surface in which, if any two points are taken, the straight line connecting them lies wholly in that surface. Solid Geometry is a science that treats of magnitudes,... | |
 | Massachusetts - 1909 - 1042 pages
...plane surface is such a surface that if any two points in it be connected by a straight line, that line will lie wholly in the surface. A curved surface is a surface no part of which is plane. POSITIONS OF A SURFACE. A surface is vertical when it has the direction of a plumb line. A surface... | |
 | George E. Mercer - Arithmetic - 1909 - 312 pages
...two dimensions, length and breadth. A plane surface is a surface that does not change its direction. A curved surface is a surface no part of which is plane. A plane figure is a portion of a plane surface bounded by lines. A regular polygon is a polygon that... | |
 | George E. Mercer, Mabel Bonsall - Arithmetic - 1914 - 324 pages
...two dimensions, length and breadth. A plane surface is a surface that does not change its direction. A curved surface is a surface no part of which is plane. A plane figure is a portion of a plane surface bounded by lines. A polygon is a plane figure bounded... | |
 | Webster Wells, Walter Wilson Hart - Geometry - 1916 - 490 pages
...^^E c' i 1y ^\; — BOOK VII POLYEDRA 522. Surfaces. So far only plane surfaces have been considered. A Curved Surface is a surface no part of which is plane. The surface of a spherical object is a iamiliar example of a curved surface. It is evident that there... | |
 | Mabel Sykes, Clarence Elmer Comstock - Geometry, Modern - 1918 - 576 pages
...examples of plane surfaces. The cylindrical and the conical surfaces are special kinds of curved surfaces. A curved surface is a surface no part of which is plane. NOTE. There are many kinds of curved surfaces besides those mentioned above. If a circle is revolved... | |
 | Adam Vause Millar, Edward Silver Maclin, Lorraine Joseph Markwardt - Geometry, Descriptive - 1919 - 180 pages
...Examples, sphere, ellipsoid. Ruled surfaces are of three kinds, plane, developable, and warped. (A). A> plane surface, or a plane, is a surface in which, if any two points are taken, the straight line joining these points lies wholly in the surface. (B). A developable surface is a ruled surface in which... | |
 | Mabel Sykes, Clarence Elmer Comstock - Geometry, Solid - 1922 - 236 pages
...examples of plane surfaces. The cylindrical and the conical surfaces are special kinds of curved surfaces. A curved surface is a surface no part of which is plane. NOTE. There are many kinds of curved surfaces besides those mentioned above. If a circle is revolved... | |
 | United States. Bureau of Naval Personnel - Electronics - 1951 - 334 pages
...Chap. 8, par. 234. PIVOT—A point, fixed pin, or short axis about which something turns. PLANE—A surface in which, if any two points are taken, the straight line that joins them lies wholly in that surface. Chap. 3. PLATE CHARACTERISTIC—Chap. 5, par. 142. POLAR... | |
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A plane surface, or a plane, is a surface in which, if any two points are taken, the straight line joining these points lies wholly in the surface. 
