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### Continguts

 BOOK I 9 Definit ons and Remarks 16 BOOK II 38 Problems relating to the First and Second Books 53 BOOK III 69 BOOK IV 82 Measurement of Areas and Proportions of Figures 109
 BOOK V 116 Of Solids 163 OF LOGARITUMS 180 APPLICATIONS OF GEOMETRY 213 MENSURATION OF SOLIDS 239 250251 8

### Passatges populars

Pŕgina 24 - If two triangles have two sides and the included angle of the one, equal to two sides and the included angle of the other, each to each, the two triangles will be equal in all their parts." Axiom 1. "Things which are equal to the same thing, are equal to each other.
Pŕgina 209 - Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible hill, there were measured, the angle of elevation of the top of the hill 40°, and of the top of the tower 51° ; then measuring in a direct line 180 feet farther from the hill, the angle of elevation of the top of the tower was 33° 45' ; required the height of the tower.
Pŕgina 55 - To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line; it is required to divide it into two equal parts.
Pŕgina 11 - A circle (Fig. 38) is a figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within, called the center.
Pŕgina 60 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
Pŕgina 25 - America, but know that we are alive, that two and two make four, and that the sum of any two sides of a triangle is greater than the third side.
Pŕgina 130 - ... or cylinder be cut by a plane parallel to the base, the section is a figure parallel and similar to the base. The one point a...
Pŕgina 124 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Pŕgina 133 - A zone is a portion of the surface of a sphere, included between two parallel planes which form its bases.