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### Continguts

 ARITHMETIC 1 Properties of Whole Divisors 22 Fractions and Decimals t 88 38 Powers and Roots 85 Ratios Proportions and Progressions 114 Diverse Rules 127 Logarithms 143 PART II 168
 Solid Geometry 298 Spheres 325 Problems in Geometry 333 PART IV 364 TRIGONOMETRY 372 Spherical Trigonometby 453 PART V 471 PART VI 565

### Passatges populars

Pŕgina 263 - If two triangles have two sides of the one equal respectively to two sides of the other, but the included angle of the first greater than the included angle of the second, then the third side of the first is greater than the third side of the second. Given A ABC and A'B'C' with UNEQUAL LINES AND UNEQUAL ANGLES Proof STATEMENTS Apply A A'B'C' to A ABC so that A'B
Pŕgina 263 - Conversely, when two sides of a triangle are equal respectively to two sides of another, but the third side of the first is greater than the third side of the second...
Pŕgina 80 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Pŕgina 81 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Pŕgina 115 - Four quantities are in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth.
Pŕgina 455 - Spherical Triangle the cosine of any side is equal to the product of the cosines of the other two sides...
Pŕgina 263 - If the diagonals of a quadrilateral bisect each other, the figure is a parallelogram.
Pŕgina 73 - The circumference of a circle is divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds.
Pŕgina 463 - B . sin c = sin b . sin C cos a = cos b . cos c + sin b . sin c cos b = cos a . cos c + sin a . sin c cos A cos B cos c = cos a . cos b + sin a . sin b . cos C ..2), cotg b . sin c = cos G.
Pŕgina 262 - The sum of the interior angles of a polygon is equal to two right angles, taken as many times less two as the figure has sides.