| William Thomas Read - Nautical astronomy - 1869 - 154 pages
...right angles to a plane, when it makes right angles with every line which meets it in that plane. 3. **The inclination of a plane to a plane, is the acute angle contained by** two straight lines drawn perpendicular to their common section from the same point in the section,... | |
| Euclides - Geometry - 1872 - 349 pages
...perpendicular to the plane, drawn from any point of the first line above the plane, meets the same plane. V. **The inclination of a plane to a plane is the acute angle, contained by** two straight lines, drawn from any the same point of their common section, at right angles to it, one... | |
| Hugo Reid - 1874
...a Plane is the smallest angle which the line makes with any straight lines drawn on the plane. 62. **The Inclination of a Plane to a Plane is the acute angle contained by** two straight lines, one in each plane, drawn from any point in the straight line in which the planes... | |
| Robert Potts, Thomas Kirkland - Geometry - 1876 - 403 pages
...perpendicular to the plane drawn from any point of the first line above the plane, meets the same plane. VL **The inclination of a plane to a plane, is the acute angle contained by** two straight lines drawn from any the same point of their common section at right angles to it, one... | |
| Euclid - 1883
...perpendicular to the plane drawn from any point of the first line above the plane, meets the same plane. **6. The inclination of a plane to a plane is the acute angle contained by** two straight lines drawn from any the same point of their common section at right angles to it, one... | |
| Edward Mann Langley, W. Seys Phillips - Mathematics - 1890 - 515 pages
...perpendicular to the plane drawn from any point of the first line above the plane, meets the same plane. **6. The ' inclination of a plane to a plane ' is the acute angle contained by** two straight lines drawn from any the same point of their common section at right angles to it, one... | |
| Euclid, H. S. Hall, F. H. Stevens - Euclid's Elements - 1904 - 456 pages
...the plane EB at right angles to the common section AB, is also at right angles to the plane CD. 7. **The inclination of a plane to a plane is the acute angle contained by** two straight lines drawn from any point in the common section at right angles to it, one in one plane... | |
| Morris Kline - Mathematics - 1990 - 390 pages
...angles to the common section of the planes, are at right angles to the remaining plane. Definition **6. The inclination of a plane to a plane is the acute...section, at the same point, one in each of the planes.** We call this acute angle the plane angle of the dihedral angle. Figure 4.17 regular icosahedron, and... | |
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