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If from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, is equal to the square of...
Report of Her Majesty's Civil Service Commissioners: Together with Appendices - Page 314
1858

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1868 - 434 pages
...rectangle BE, ED. (I. ax. 1.) Wherefore, if two straight lines, &c. QED PROPOSITION XXXVI. THEOREM. If from any point without a circle two straight lines be drawn, one oj trhich cuts the circle, and the other touches it ; the rectangle contained by the whole line which...

## An Elementary Course of Plane Geometry

Richard Wormell - Geometry, Plane - 1870 - 304 pages
...tangent is a mean proportional between the whole secant and the part without the circle (§230). Or, If from any point without a circle two straight lines...cuts the circle and the part of it without the circle is equal to the square of the tangent. 50. The line joining the centres of two circumferences is perpendicular...

## The Edinburgh university calendar

Edinburgh univ - 1871 - 392 pages
...enunciation, so as to extend it to the case where the parallelograms are on opposite sides of the bases. 5. If from any point without a circle two straight lines...the circle, and the part of it without the circle, is equal to the square of the line which touches it. 6. Prove that similar triangles are to one another...

## The Elements of Plane and Solid Geometry

Henry William Watson - Geometry - 1871 - 320 pages
...rectangle of EC and ED becomes the square of EF, and therefore we have this proposition, viz. If from a point without a circle two straight lines be drawn, one of which cuts and the other touches the circle, then the rectangle of the segments of the cutting line shall be equal...

## Elements of geometry, containing the first two (third and fourth ..., Part 2

Euclides - 1872 - 102 pages
...AB; shew that the rectangle CP, CQ is equal to the rectangle CP", CQ.' PROPOSITION XXXVI. THEOREM. If, from any point without a circle, two straight...it; the rectangle contained by the whole line which cute the circle, and the part of it without the circle, must be equal to the square on the line which...

## Elements of geometry, containing books i. to vi.and portions of books xi ...

Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...circle, their four extremities shall all -. in the circumference of a circle. PROPOSITION XXXVI. THEOREM. If, from any point without a circle, two straight...and the other touches it ; the rectangle contained 6y the whole line which cuts the circle, and the part of it without the. circle, must be equal to the...

University of Madras - 1873 - 436 pages
...respectively, shew that the quadrilateral KLMN is equal in all respects to the quadrilateral ABCD. IX. If from any point without a circle two straight lines be drawn, one of which cuts the circle, bui does not pass through the centre, and the other touches it ; prove that the rectangle contained...

## Rules and Formulę in Elementary Mathematics. With Notes

Braithwaite Arnett - Mathematics - 1873 - 120 pages
...The following results are frequently required in the investigation of the properties of triangles. If from any point without a circle two straight lines be drawn touching the circle, they are equal. This follows immediately from Euclid in. 37. For if DBj DE be...