Elements of Descriptive GeometryMacmillan and Company, 1878 - 202 páginas |
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Página xi
... angular points in the same face are given THE TRIHEDRAL ANGLE 92 94 96 · 98 Problem I. Given the three faces of a trihedral angle , to find the three dihedral angles Problem II . Given two faces of a trihedral angle and the dihedral angle ...
... angular points in the same face are given THE TRIHEDRAL ANGLE 92 94 96 · 98 Problem I. Given the three faces of a trihedral angle , to find the three dihedral angles Problem II . Given two faces of a trihedral angle and the dihedral angle ...
Página 3
... dihedral angle , and is measured by the angle be- tween two straight lines drawn from any point of their com- mon section , at right angles to it , one in each plane . DEF . 7. When the angle between two planes is a right angle , the ...
... dihedral angle , and is measured by the angle be- tween two straight lines drawn from any point of their com- mon section , at right angles to it , one in each plane . DEF . 7. When the angle between two planes is a right angle , the ...
Página 62
... dihedral angle between them . If a plane , as BAC fig . 49 , were drawn ... angles to IN and cutting it in D. Determine the perpendicular to LN from D ... angles to BD and DA , is at right angles to the plane BAC ; consequently the angle ...
... dihedral angle between them . If a plane , as BAC fig . 49 , were drawn ... angles to IN and cutting it in D. Determine the perpendicular to LN from D ... angles to BD and DA , is at right angles to the plane BAC ; consequently the angle ...
Página 70
... dihedral angles contained by the planes of pro- jection , each point being 1 " distant from the horizontal plane and ... angle of 60 ° with xy . Find the inclination of AB to each plane of projection and mark the projections of a point ...
... dihedral angles contained by the planes of pro- jection , each point being 1 " distant from the horizontal plane and ... angle of 60 ° with xy . Find the inclination of AB to each plane of projection and mark the projections of a point ...
Página 98
J. B. Millar. THE TRIHEDRAL ANGLE . In a trihedral angle there are three plane angles or faces and three dihedral angles . When any three of these six parts are known the other three may be determined . There are therefore six different ...
J. B. Millar. THE TRIHEDRAL ANGLE . In a trihedral angle there are three plane angles or faces and three dihedral angles . When any three of these six parts are known the other three may be determined . There are therefore six different ...
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Términos y frases comunes
abcd auxiliary planes axes BALFOUR STEWART centre common section cone of revolution conical surface Construction contain a given contains the line Crown 8vo curve of intersection describes a circle determine the traces diameter dihedral angles distance draw a line draw a tangent Draw the projections drawn edge ELEMENTARY TREATISE ellipse equal faces Fcap figure find the point find the projections find the traces given line given point given spheres ground line horizontal plane horizontal projection horizontal trace hyperboloid inclined at 45 limiting planes meridian numerous Illustrations Owens College P. G. TAIT pendicular perpendicular plane containing plane LMN plane of projection plane parallel plane required point of intersection position Prob PROBLEM Professor Proof rabatment radius required to find respectively revolving right angles ruled surface straight line surface of revolution tangent plane Theor THEOREM tion trihedral vertex vertical plane vertical projection vertical trace
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