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 Boeken Boek IF a straight line touch a circle, and from the point of contact a straight line be drawn at right angles to the touching line, the centre of the circle shall be in that line. Elements of Geometry: Containing the First Six Books of Euclid with a ... - Pagina 79
door John Playfair - 1856 - 318 pagina’s
Volledige weergave - Over dit boek ## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 119 pagina’s
...F(J is perpendicular to DE. Therefore, if a straight line, &o. QED, Proposition 19.— Theorem. Jf a straight line touch a circle, and from the point of contact a straight line be drawn at right angles to the touching liiie, the centre of the circle shall be in that line. Let the straight...
Volledige weergave - Over dit boek ## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1876 - 403 pagina’s
...FC is perpendicular to DE. Therefore, if a straight line, &c. QED • PROPOSITION XIX. THEOREM. If a straight line touch a circle, and from the point of contact a straight line ba drawn at right angles to the touching line, the center of the circle ihali be in that line. Let...
Volledige weergave - Over dit boek ## Modern geometry [ed.] with an appendix by W.B. Jack

Richard Wormell - 1876
...it touches it internally or externally. .. .. .. .. .. ..116 19. If a straight line be a tangent to a circle, and from the point of contact a straight line be drawn perpendicular to the tangent, the centre of the circle shall be in that line. .. .. .. .. .. .. 116...
Volledige weergave - Over dit boek ## Examination Papers for Science Schools and Classes

...from the centre. What is the locus of the middle points of all equal chords of a circle? (15.) 29. If a straight line touch a circle, and from the point...contact a straight line be drawn cutting the circle, show that the angles which this line makes with the line touching the circle shall be equal to the...
Volledige weergave - Over dit boek ## The elements of plane geometry, from the Sansk. text of Ayra Bhatta, ed. by ...

Āryabhaṭa - 1878
...than, and DAB greater than a semicircle. Then the angles which BD makes with the touching line EF, shall be equal to the angles in the alternate segments of the circle ; that is the angle DBF shall bo equal to the angle which is in the segment DAB and the angle DBE shall...
Volledige weergave - Over dit boek ## The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - 1879 - 266 pagina’s
...right angle; wherefore the other, AD C, is greater than a right angle. Proposition 22. Theorem.—If a straight line touch a circle, and from the point...circle, the angles made by this line with the line ivhich touches the circle, will be equal to the angles in the alternate segments of the circle. Let...
Volledige weergave - Over dit boek ## Parliamentary Papers, Volume 22

...at right angles ; and if it cut it at right angles it shall bisect it. 6. If a straight line touches a circle, and from the point of contact a straight...circle, the angles made by this line with the line touching the circle shall be equal to the angles which are in the alternate segments of the circle....
Volledige weergave - Over dit boek ## Report of Her Majesty's Civil Service Commissioners: Together ..., Volume 23

1879
...it at right angles ; and if it cut it at right angles it shall bisect it. If a straight line touches a circle, and from the point of contact a straight...circle, the angles made by this line with the line touching the circle shall be equal to the angles which are in the alternate segments of the circle,...
Volledige weergave - Over dit boek ## First Public Examination in Literis Graecis Et Latinis

University of Oxford - 1879
...sides is a right angle. 3. Describe a square that shall be equal to a given rectilineal figure. 4. If a straight line touch a circle, and from the point...straight line be drawn cutting the circle, the angles which this straight line makes with the line touching the circle shall be equal to the angles which...
Volledige weergave - Over dit boek ## Examination Papers: Moderations

University of Oxford - 1879
...a circle in a given square. 8. Bisect a given arc, that i«, divide it into two equal parts. 9. If a straight line touch a circle, and from the point...straight line be drawn cutting the circle, the angles which this line makes with the line touching the circle shall be equal to the angles which are in the...
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