## Problems and ExamplesDeighton, Bell and Company, 1862 - 141 pages |

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Page 57

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**straight line**with the tower , to be 30 ° and 45 ° respectively . Find their distances from each other and from the observer . 7. Three objects A , B , C , form an isosceles triangle whose vertex is B , and whose angles are as the ... Page 64

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**straight lines**be drawn , one perpendicular to the chord , meeting the axis in G , the other to the axis meeting it ... line be drawn touching the parabola , the angle between this line and the line drawn to the focus from the same point ... Page 65

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**straight line**is a parabola . 30. If QQ ' be a focal chord , PV the diameter bisecting QQ ' in V , then SP = PV and QV = 2SP . 31. The**straight line**which bisects the angle PTQ between two tangents to a parabola , of which the focus is ... Page 66

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**straight lines**. 4. Given a focus and three tangents ; construct the ellipse . 5. Given the foci ; describe an ellipse touching a given**straight line**. 6. Find the locus of the centre of an ellipse of given ex- centricity , which has a ... Page 67

Harvey Goodwin. 14. If from H a

Harvey Goodwin. 14. If from H a

**straight line**be drawn parallel to SP , it will meet SY in the circumference of a circle . 15. If from the centre of an ellipse**straight lines**be drawn parallel and perpendicular to the tangent at any ...### Other editions - View all

### Common terms and phrases

2nd Edition 3rd Edition 4th Edition acceleration tending arithmetical arithmetical mean arithmetical series bisected centre of gravity chord circle concave cone Conic Sections conjugate convex lens Crown 8vo cylinder determine diameter directrix distance drawn Elementary ellipse English equal equation extremity F. A. Paley Fcap feet Find the number find the value fluid focal length foci focus geometrical progression given point given weight harmonic mean horizontal inches incident inclined plane inscribed intersection Latin latus rectum locus luminous point middle point mirror Multiply parabola parallel particle describes passing perpendicular position Post 8vo pressure prism projected prove pully quantity radii radius ratio reflected refracting respectively shew sides sinČ specific gravity sphere spherical square straight line string subtends surface tangent tower velocity vertex vertical

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