The geometry, by T. S. Davies. Conic sections, by Stephen FenwickJ. Weale, 1853 |
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Σελίδα
... direction of , and the Chapter on CONIC SECTIONS Supplied • BY STEPHEN FENWICK , ESQ . LONDON : PRINTED FOR HER MAJESTY'S STATIONERY OFFICE : PUBLISHED BY JOHN WEALE , 59 HIGH HOLBORN . 1853 . ATOGIMMIN CONTENTS . FIRST SIX BOOKS OF ...
... direction of , and the Chapter on CONIC SECTIONS Supplied • BY STEPHEN FENWICK , ESQ . LONDON : PRINTED FOR HER MAJESTY'S STATIONERY OFFICE : PUBLISHED BY JOHN WEALE , 59 HIGH HOLBORN . 1853 . ATOGIMMIN CONTENTS . FIRST SIX BOOKS OF ...
Σελίδα 1
... direction . 9. 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 . E When several angles are at one point B , any one of them is expressed by ...
... direction . 9. 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 . E When several angles are at one point B , any one of them is expressed by ...
Σελίδα 140
... directions , they will never meet . 2. A line and plane are parallel when , however far produced in all possible ... direction of the lines . The lines are called the edges of the prism ; the parallel planes , the ends or bases of ...
... directions , they will never meet . 2. A line and plane are parallel when , however far produced in all possible ... direction of the lines . The lines are called the edges of the prism ; the parallel planes , the ends or bases of ...
Σελίδα 169
... direction , those planes will be parallel . The italics indicate the restrictions alluded to . COR . 3. The opposite dihedral angles of a parallelopiped are equal . ( Prop . xx . Chap . 1. ) . PROPOSITION XVI . If a line be ...
... direction , those planes will be parallel . The italics indicate the restrictions alluded to . COR . 3. The opposite dihedral angles of a parallelopiped are equal . ( Prop . xx . Chap . 1. ) . PROPOSITION XVI . If a line be ...
Σελίδα 179
... direction of the line AB from A. If , also , E had fallen at C or D , the same conclusion is deducible by a slight modification of the reasoning . ( 2. ) The same general conditions as before , except that E falls in the prolongation of ...
... direction of the line AB from A. If , also , E had fallen at C or D , the same conclusion is deducible by a slight modification of the reasoning . ( 2. ) The same general conditions as before , except that E falls in the prolongation of ...
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ABC is equal ABCD adjacent angles angle ABC angle BAC axis bisected centre circle ABC circumference coincide cone construction coordinate planes described Descriptive Geometry diameter dicular dihedral angles draw edges ellipse equal angles equiangular equimultiples given line given point given straight line greater hence horizontal hyperbola inclination intersection join less Let ABC Let the plane line BC lines drawn magnitudes meet multiple orthograph parabola parallel planes parallelogram parallelopiped perpen perpendicular perpendicular to MN plane MN plane of projection plane parallel plane PQ prisms profile angles profile plane projecting plane Prop Q. E. D. PROPOSITION ratio rectangle rectangle contained rectilineal figure remaining angle respectively right angles SCHOLIUM segment sides six right sphere spherical angle tangent THEOR trace triangle ABC trihedral vertex Whence Wherefore