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" 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 81
door John Playfair - 1856 - 318 pagina’s
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Annual Report

Saskatchewan. Department of Education - 1910 - 260 pagina’s
...diagonals by four times the square on the line joining the middle points of the diagonals. 3. (a) If a straight line touch a circle and from the point of contact a chord be drawn, the angles which this chord makes with the tangent shall be equal to the angles which...
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The Poincaré Half-plane: A Gateway to Modern Geometry

Saul Stahl - 1993 - 320 pagina’s
...equal to one another, whether they stand at the centers or at the circumferences. Proposition 32. // a straight line touch a circle, and from the point of contact there be drawn across, in the circle, a straight line cutting the circle, the angles which it makes...
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The Changing Shape of Geometry: Celebrating a Century of Geometry and ...

Chris Pritchard - 2003 - 572 pagina’s
...greater than a right angle, and the angle of the less segment less than a right angle. Prop. 32: If a straight line touch a circle, and from the point of contact there be drawn across, in a circle, a straight line cutting the circle, the angles which it makes with...
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Euclid's Elements in Greek: Vol. I: Books 1-4

Richard Fitzpatrick - 2005 - 298 pagina’s
...circle, cutting the circle (in two), then those angles the (straight-line) makes with the tangent will be equal to the angles in the alternate segments of the circle. (Which is) the very thing it was required to show. 229 Xy' F ^^ ЕВЕ 'Еш Trjç 8o9star]ç sùôetaç...
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