# Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement of the Quadrature of the Circle and the Geometry of Solids

F. Nichols, 1806 - 311 pŕgines

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### Continguts

 Secció 1 1 Secció 2 3 Secció 3 49 Secció 4 69 Secció 5 85 Secció 6 94 Secció 7 107 Secció 8 112
 Secció 12 198 Secció 13 199 Secció 14 205 Secció 15 216 Secció 16 227 Secció 17 247 Secció 18 268 Secció 19 273

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 Secció 20 279 Secció 21 286

### Passatges populars

Pŕgina 121 - 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 42 - 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.
Pŕgina 63 - Therefore, in obtuse-angled triangles, &c. QED PROP. XIII. THEOREM. In every triangle, the square of the side subtending either of the acute angles is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular let fall upon it from the opposite angle, and the acute angle.
Pŕgina 3 - 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 183 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides. Let AC, CF be equiangular parallelograms having the angle BCD equal to the angle ECG ; the ratio of the parallelogram AC to the parallelogram CF is the same with the ratio which is compounded •f the ratios of their sides.
Pŕgina 3 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Pŕgina 291 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Pŕgina 160 - ... extremities of the base shall have the same ratio which the other sides of the triangle have to one...
Pŕgina 10 - ... shall be greater than the base of the other. Let ABC, DEF be two triangles, which have the two sides AB, AC, equal to the two DE, DF, each to each, viz.
Pŕgina 14 - Therefore, upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of the base equal to one another, and likewise those which are terminated in the other extretnity equal to one another.