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 Llibres Llibres 21 - 30 de 192 sobre If a straight line touch a circle, and from the point of contact a straight line.... If a straight line touch a circle, and from the point of contact a straight line be drawn cutting the circle, the angles... The Teacher's Assistant in the "Course of Mathematics Adapted to the Method ... - Pàgina 44
1836 - 472 pàgines
Visualització completa - Sobre aquest llibre ## Elements of geometry: Being chiefly a selection from Playfair's geometry

John Playfair - 1829 - 186 pàgines
...to DE; therefore FC is perp. 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 be drawn perpendicular to the tangent, the centre of the circle is in that line. • ' N CG 1) c E Let the straight...
Visualització completa - Sobre aquest llibre ## Geometry, Plane, Solid, and Spherical, in Six Books: To which is Added, in ...

Pierce Morton - 1830 - 272 pàgines
...be perpendicular to the line touching the circle. Cor. 2. (Eue. iii. 19.) If a straight line touches 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. Cor. 3. Tangents...
Visualització completa - Sobre aquest llibre ## A Collection of Cambridge Mathematical Examination Papers: Papers in the ...

...contact, a straight line be drawn cutting the circle, shew that the angles made by those lines will be equal to the angles in the alternate segments of the circle. 9. Demonstrate the proposition usually cited Ex cequo. \.Euclid, Book 5, Prop. 22.] 10. Shew that the...
Visualització completa - Sobre aquest llibre ## Elements of Geometry: Containing the First Six Books of Euclid : with a ...

John Playfair - 1832 - 333 pàgines
...to the same two, and when the adjacent angles are equal, they are right angles. PROP. XXXII. THEOR. If a straight line touch a circle, and from the point...the angles made by this line, with the line which touchex the circle, shall be equal to the angles in the alternate segments of the circle. Let the straight...
Visualització completa - Sobre aquest llibre ## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1833 - 333 pàgines
...they are right angles. PROP. XXXII. THEOR. .» If a straight line touch a.circle, and from thepoint of contact a straight line be drawn cutting the circle,...the angles in the alternate segments of the circle. Let the straight line EF touch the circle ABCD in B, and from the point B let the straight line BD...
Visualització completa - Sobre aquest llibre ## The Elements of Euclid; viz. the first six books, together with the eleventh ...

Euclides - 1834
...adjacent angles are equal, they are t right angles. f 10 Def. 1• PROPOSITION XXXII. ¥ THEOR. — 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...
Visualització completa - Sobre aquest llibre ## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1835 - 316 pàgines
...to the same two ; and when the adjacent angles are equal, they are right angles. PROP. XXX. THEOR. If a straight line touch a circle, and from the point of contact a straight line be draion cutting the circle, the angles made by this line with the line which touches the circle, shall...
Visualització completa - Sobre aquest llibre ## Library of Useful Knowledge: Geometry, plane, solid, and spherical [by ...

1835
...be perpendicular to the line touching the circle. Cor. 2. (Eue. iii. 19.) If a straight line touches 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. Cor. 3. Tangents...
Visualització completa - Sobre aquest llibre ## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1836 - 471 pàgines
...the same two ; and when the adjacent angles art- equal, they are right angles. PROP. XXXII. THEOR. If a straight line touch a circle, and from the point...this line with the line which touches the circle, are equal to the angles in the alternate segments of the circle. Let the straight line EF touch the...
Visualització completa - Sobre aquest llibre ## The Element of Geometry

John Playfair - 1836 - 114 pàgines
...FC, that is, FC is perpendicular to DE. Therefore, if a straight line, &c. QED CGE PROP.. XI. THEOR. 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. Let the straight...
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