The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid |
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Seite 63
Q. E. D. B The demonstration of this proposition might be rendered clearer by changing the enunciation as follows : -If one circle touch another internally in any point , that point and the centres of the two circles are in the same ...
Q. E. D. B The demonstration of this proposition might be rendered clearer by changing the enunciation as follows : -If one circle touch another internally in any point , that point and the centres of the two circles are in the same ...
Seite 64
B For if it be possible , let E B F touch A B C in another point D. Join BD , and draw G H bisecting ( I. 11 ) B D at right angles . Because the points B and D are in the circumference of both circles the straight line B D lies ( III .
B For if it be possible , let E B F touch A B C in another point D. Join BD , and draw G H bisecting ( I. 11 ) B D at right angles . Because the points B and D are in the circumference of both circles the straight line B D lies ( III .
Seite 68
If a straight line touch a circle , the straight line drawn from the centre to the point of contact is perpendicular to the line touching the circle . Let the straight line D E touch the circle A B C in the point C , and from F ...
If a straight line touch a circle , the straight line drawn from the centre to the point of contact is perpendicular to the line touching the circle . Let the straight line D E touch the circle A B C in the point C , and from F ...
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