# Elements of Geometry Containing Books I. to VI. and Portions of Books XI. and XII. of Euclid, with Exercises and Notes

Rivingtons, 1876 - 348 pŕgines

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### Continguts

 Miscellaneous Exercises on Books L and II 116 Euclids Propositions I to V 123 Euclids Propositions VI to X 129 Proposition B Eucl IV 5 135 to XI 142 Proposition C 150 Euclids Propositions XXX to XXXVIL 160 Miscellaneous Exercises on Book 1IL 169 Euclids Propositions XXIII and XXIV of Book III 175 Euclids Propositions VI to XVL 184 Miscellaneous Exercises on Book IV 196 II 211 CONTAINING THE PROPOSITIONS MOST FRE 221 Eucl V b 227 Eucl V 5 235 Eucl V 6 236 Eucl V 17 237 Eucl V 19 238
 Eucl VI 9 258 Eucl VI 10 259 Eucl VI 11 260 Eucl VI 12 261 Proposition XIT Eucl VI 8 262 Definition IV 264 EucliDs Propositions XIV to XIX 265 Exercises on Proposition XIX 274 Eucl VI 21 275 Eucl VI 20 276 Eucl VI 31 278 Eucl VI 22 280 Proposition B 284 Eucl VI 25 290 IntroDuctory Remarks 307 Eucl XI 3 313 Miscellaneous Exercises on Book XI 334 Papers on EucliD Books VI anD XI set in the Cam 342

### Passatges populars

Pŕgina 23 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it. Let AB be the given straight line, which may be produced to any length both ways, and let c be a point without it. It is required to draw a straight line perpendicular to AB from the point c. Take any point D upon the other side of AB, and from the centre c, at the distance CD, describe (Post.
Pŕgina 82 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Pŕgina 40 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...
Pŕgina 161 - The angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is less than a right angle; and the angle in a segment less than a semicircle is greater than a right angle.
Pŕgina 91 - In every triangle, the square on the side subtending either of the acute angles, is less than the squares on the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the acute angle and the perpendicular let fall upon it from the opposite angle, Let ABC be any triangle, and the angle at B one of its acute angles, and upon BC, one of the sides containing it, let fall the perpendicular AD from the opposite angle.
Pŕgina 5 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Pŕgina 5 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Pŕgina 35 - ... shall be equal to three given straight lines, but any two whatever of these must be greater than the third.
Pŕgina 90 - ... the sides containing the obtuse angle, by twice the rectangle contained by the side upon which, when produced, the perpendicular falls, and the straight line intercepted without the triangle between the perpendicular and the obtuse...
Pŕgina 265 - EQUAL parallelograms which have one angle of the one equal to one angle of the other, have their sides about the equal angles...