# Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle, and the Geometry of Solids; to which are Added, Elements of Plane and Spherical Trigonometry

W. E. Dean, 1836 - 311 páginas

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### Contenido

 Sección 1 iii Sección 2 18 Sección 3 19 Sección 4 21 Sección 5 22 Sección 6 65 Sección 7 123 Sección 8 134
 Sección 19 307 Sección 20 308 Sección 21 309 Sección 22 318 Sección 23 325 Sección 24 326 Sección 25 336 Sección 26 345

 Sección 9 142 Sección 10 143 Sección 11 169 Sección 12 200 Sección 13 213 Sección 14 221 Sección 15 245 Sección 16 267 Sección 17 296 Sección 18 303
 Sección 27 376 Sección 28 393 Sección 29 405 Sección 30 416 Sección 31 447 Sección 32 450 Sección 33 454 Sección 34 466 Sección 35 469

### Pasajes populares

Página 56 - To a given straight line to apply a parallelogram, which shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle.
Página 24 - If two triangles have two sides of the one equal to two sides of the...
Página 44 - Wherefore, if a straight line, &c. QED PROP. XXIX. THEOR. s«e N. Ij'a straight line fall upon two parallel straight lines, it makes the alternate angles equal...
Página 72 - THEOR. //' a straight line be divided into two equal, and also into two unequal parts, the squares of the two unequal parts are together double of the square of half the line, and of the square of the line between the points of section.
Página 82 - An angle in a segment is the angle contained by two straight lines drawn from any point in the circumference of the segment to the extremities of the straight . line which is the base of the segment.
Página 409 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Página 110 - 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.
Página 116 - 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, shall be equal to the square of the line which touches it.
Página 52 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Página 47 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of every triangle are equal to two right angles.