The geometry, by T. S. Davies. Conic sections, by Stephen FenwickJ. Weale, 1853 |
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Αποτελέσματα 1 - 5 από τα 52.
Σελίδα 4
... circle BCD , and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines ( 1 Post . ) CA , CB , to the points A , B : ABC shall be an ...
... circle BCD , and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines ( 1 Post . ) CA , CB , to the points A , B : ABC shall be an ...
Σελίδα 5
... circle CGH , and from the centre D , at the distance DG , describe the ... ABC , DEF be two triangles , which have the two sides AB , AC equal to the ... ABC to the triangle DEF ; and the other angles to G E H F which the equal sides are ...
... circle CGH , and from the centre D , at the distance DG , describe the ... ABC , DEF be two triangles , which have the two sides AB , AC equal to the ... ABC to the triangle DEF ; and the other angles to G E H F which the equal sides are ...
Σελίδα 10
... ABC , ABD have the segment AB common to both of them . From the point B draw BE at right angles to AB ; and because ABC ... circle FDG meeting AB in H B D F , G ; and bisect ( 10. 1. ) FG in H , and join CF , AF CH , CG ; the straight line CH ...
... ABC , ABD have the segment AB common to both of them . From the point B draw BE at right angles to AB ; and because ABC ... circle FDG meeting AB in H B D F , G ; and bisect ( 10. 1. ) FG in H , and join CF , AF CH , CG ; the straight line CH ...
Σελίδα 47
... circle . Let ABC be the given circle ; it is required to find its centre . Draw within it any straight line AB , and bisect ( 10. 1. ) it in D ; from the point D draw ( 11. 1. ) DC at right angles to AB , and produce it to E , and ...
... circle . Let ABC be the given circle ; it is required to find its centre . Draw within it any straight line AB , and bisect ( 10. 1. ) it in D ; from the point D draw ( 11. 1. ) DC at right angles to AB , and produce it to E , and ...
Σελίδα 48
... circle ABC . In the same manner it can be shown , that no other point but F is the centre ; that is , F is the centre of the circle ABC . be found . Which was to COR . From this it is manifest , that if in a circle a straight line ...
... circle ABC . In the same manner it can be shown , that no other point but F is the centre ; that is , F is the centre of the circle ABC . be found . Which was to COR . From this it is manifest , that if in a circle a straight line ...
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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