Pure mathematics, Τόμος 11874 |
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Σελίδα 17
... shown further on , may be looked upon as fractions , according to the above definition , whose denominators are powers of 10 , and not expressed but understood . It is convenient to classify fractions as follows : — ( 1. ) A proper ...
... shown further on , may be looked upon as fractions , according to the above definition , whose denominators are powers of 10 , and not expressed but understood . It is convenient to classify fractions as follows : — ( 1. ) A proper ...
Σελίδα 31
... than the ratio 41:16 . Addition of Fractions . 20. We have shown ( Art . 6 ) that the numerator and deno- minator respectively represent the antecedent and consequent of a ratio ; and it is evident from the ADDITION OF FRACTIONS . 31.
... than the ratio 41:16 . Addition of Fractions . 20. We have shown ( Art . 6 ) that the numerator and deno- minator respectively represent the antecedent and consequent of a ratio ; and it is evident from the ADDITION OF FRACTIONS . 31.
Σελίδα 95
... shown that BC is equal to BG . Therefore AL and BC are each of them equal to BG . But things which are equal to the same thing are equal to one another , therefore AL is equal to BC ( Ax . 1 ) . Therefore from the given point A a ...
... shown that BC is equal to BG . Therefore AL and BC are each of them equal to BG . But things which are equal to the same thing are equal to one another , therefore AL is equal to BC ( Ax . 1 ) . Therefore from the given point A a ...
Σελίδα 97
... shown . Proposition 5. - Theorem . The angles at the base of an isosceles triangle are equal to one another ; and if the equal sides be produced , the angles upon the other side of the base shall also be equal . = A DEF . ABC = < DEF ...
... shown . Proposition 5. - Theorem . The angles at the base of an isosceles triangle are equal to one another ; and if the equal sides be produced , the angles upon the other side of the base shall also be equal . = A DEF . ABC = < DEF ...
Σελίδα 99
... shown . COROLLARY . - Hence every equilateral triangle is also equiangular . Proposition 6. - Theorem . If two angles of a triangle be equal to one another , the sides also which subtend , or are opposite to , the equal angles , shall ...
... shown . COROLLARY . - Hence every equilateral triangle is also equiangular . Proposition 6. - Theorem . If two angles of a triangle be equal to one another , the sides also which subtend , or are opposite to , the equal angles , shall ...
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a²b a²b² ab² ab³ ABCD algebraical angle ABC angle BAC angle BCD base BC BC is equal bisect brackets cent centim centre circle ABC circumference coefficient common Const cosec cube root decimal figures denominator divided divisor draw equation expression exterior angle factor Find the value fraction given straight line gnomon gram greater Hence integer join kilom less Let ABC logarithm metres miles millig Multiply opposite angles parallel parallelogram perpendicular PROOF.-Because Q. E. D. Proposition quotient ratio rectangle contained remainder right angles segment sides sin² sine square on AC square root subtraction touches the circle triangle ABC twice the rectangle x²y² x³y xy³
Δημοφιλή αποσπάσματα
Σελίδα 272 - The angles in the same segment of a circle are equal to one another.
Σελίδα 103 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it.
Σελίδα 233 - If there be two straight lines, one of which is divided into any number of parts, the rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line, and the several parts of the divided line. Let A and BC be two straight lines, and let BC be divided into any...
Σελίδα 112 - IF two triangles have two sides of the one equal to two sides of the...
Σελίδα 128 - 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.
Σελίδα 119 - 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 together equal to two right angles.
Σελίδα 113 - ... equal angles in each ; then shall the other sides be equal, each to each ; and also the third angle of the one to the third angle of the other.
Σελίδα 273 - The opposite angles of any quadrilateral figure inscribed in a circle, are together equal to two right angles.
Σελίδα 281 - 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.
Σελίδα 121 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel.