Pure Mathematics, Volumen11874 |
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Página 96
... base BC shall be equal to the base EF ; The triangle ABC shall be equal to the triangle DEF ; * Q. E. F. is an abbreviation for quod erat faciendum , that is “ which was to be done . " And the other angles to which the equal sides are ...
... base BC shall be equal to the base EF ; The triangle ABC shall be equal to the triangle DEF ; * Q. E. F. is an abbreviation for quod erat faciendum , that is “ which was to be done . " And the other angles to which the equal sides are ...
Página 97
... base BC shall coincide with the base EF . Because the point B coinciding with E , and C with F , if the base BC do not coincide with the base EF , two straight lines would enclose a space , which is impossible ( Ax . 10 ) . Therefore the ...
... base BC shall coincide with the base EF . Because the point B coinciding with E , and C with F , if the base BC do not coincide with the base EF , two straight lines would enclose a space , which is impossible ( Ax . 10 ) . Therefore the ...
Página 99
... base , Therefore the angles at the base , & c . ( see Enunciation ) . Which was to be shown . COROLLARY . - Hence ... BC is common to both , Therefore the two sides DB , BC are equal to the two sides AC , CB , each to each ; And ...
... base , Therefore the angles at the base , & c . ( see Enunciation ) . Which was to be shown . COROLLARY . - Hence ... BC is common to both , Therefore the two sides DB , BC are equal to the two sides AC , CB , each to each ; And ...
Página 100
... base , and on the same side of it , there cannot be two triangles that have ... BC is equal to BD ( Hyp . ) , The triangle BCD is an isosceles triangle ... base CD , are equal to one another ( I. 5 ) , But the angle ECD is ...
... base , and on the same side of it , there cannot be two triangles that have ... BC is equal to BD ( Hyp . ) , The triangle BCD is an isosceles triangle ... base CD , are equal to one another ( I. 5 ) , But the angle ECD is ...
Página 101
... BC is equal to BD ( Hyp . ) , < BDC > 4 BCD . The triangle BDC is an ... base , & c . Q. E. D. Proposition 8. - Theorem . If two triangles have two ... base BC equal to the base EF . The angle BAC shall be equal to the angle EDF ...
... BC is equal to BD ( Hyp . ) , < BDC > 4 BCD . The triangle BDC is an ... base , & c . Q. E. D. Proposition 8. - Theorem . If two triangles have two ... base BC equal to the base EF . The angle BAC shall be equal to the angle EDF ...
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Términos y frases comunes
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
Pasajes populares
Página 272 - The angles in the same segment of a circle are equal to one another.
Página 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.
Página 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...
Página 112 - IF two triangles have two sides of the one equal to two sides of the...
Página 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.
Página 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.
Página 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.
Página 273 - The opposite angles of any quadrilateral figure inscribed in a circle, are together equal to two right angles.
Página 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.
Página 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.