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Contenido

 ELEMENTARY PRINCIPLES 7 BOOK II 43 BOOK III 55 BOOK IV 76 BOOK V 118 REGULAR POLYGONS AND THE AREA OF TIE CIRCLE 142 SOLID GEOMETRY 165 POLYEDRONS 184
 BOOK XII 281 BOOK XIII 301 XIV 311 TRIGONOMETRY 1 BOOK II 13 BOOK III 41 BOOK IV 61 BOOK V 72

 BOOK IX 214 BOOK X 238 BOOK XI 253
 BOOK VI 105 Derechos de autor

Pasajes populares

Página 28 - 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.
Página 37 - 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.
Página 79 - Two rectangles having equal altitudes are to each other as their bases.
Página 251 - The convex surface of the cylinder is equal to the circumference of its base multiplied by its altitude (Prop.
Página 52 - If any number of quantities are proportional, any antecedent is to its consequent as the sum of all the antecedents is to the sum of all the consequents. Let a : b = c : d = e :f Now ab = ab (1) and by Theorem I.
Página 35 - If any side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles.
Página 168 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
Página 303 - Equal triangles upon the same base, and upon the same side of it, are between the same parallels.
Página 4 - The logarithm of any POWER of a number is equal to the product of the logarithm of the number by the exponent of the power. For let m be any number, and take the equation (Art. 9) M=a*, then, raising both sides to the wth power, we have Mm = (a")m = a"" . Therefore, log (M m) = xm = (log M) X »»12.
Página 102 - Two triangles, which have an angle of the one equal to an angle of the other, and the sides containing.