Pure mathematics, Τόμος 11874 |
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Αποτελέσματα 1 - 5 από τα 42.
Σελίδα 90
... circle is a plane figure contained by one line , which is called the circumference , and is such , that all straight ... circle , [ and any straight line drawn from the centre to the circumference is called a radius of the circle ] . 17 ...
... circle is a plane figure contained by one line , which is called the circumference , and is such , that all straight ... circle , [ and any straight line drawn from the centre to the circumference is called a radius of the circle ] . 17 ...
Σελίδα 91
... circle is the figure contained by a straight line and the part of the circumference which it cuts off . 20. Rectilineal figures are those which are contained by straight lines . 21. Trilateral figures , or triangles , by three straight ...
... circle is the figure contained by a straight line and the part of the circumference which it cuts off . 20. Rectilineal figures are those which are contained by straight lines . 21. Trilateral figures , or triangles , by three straight ...
Σελίδα 92
... circle may be described from any centre , at any distance from that centre . Axioms . 1. Things which are equal to the same thing are equal to one another . 2. If equals be added to equals the wholes are equal . 3. If equals be taken ...
... circle may be described from any centre , at any distance from that centre . Axioms . 1. Things which are equal to the same thing are equal to one another . 2. If equals be added to equals the wholes are equal . 3. If equals be taken ...
Σελίδα 94
... circle BCD ( Post . 3 ) . From the centre B , at the dis- tance BA , describe the circle ACE ( Post . 3 ) . From the point C , in which the circles cut one another , draw the straight lines CA , CB to the points A and B ( Post . 1 ) ...
... circle BCD ( Post . 3 ) . From the centre B , at the dis- tance BA , describe the circle ACE ( Post . 3 ) . From the point C , in which the circles cut one another , draw the straight lines CA , CB to the points A and B ( Post . 1 ) ...
Σελίδα 95
... circle CGH , meeting DF in G ( Post . 3 ) . From the centre D , at the dis- tance DG , describe the circle GKL , meeting DE in L ( Post . 3 ) . Then AL shall be equal to BC . PROOF . Because the point B is the centre of the circle CGH ...
... circle CGH , meeting DF in G ( Post . 3 ) . From the centre D , at the dis- tance DG , describe the circle GKL , meeting DE in L ( Post . 3 ) . Then AL shall be equal to BC . PROOF . Because the point B is the centre of the circle CGH ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
amount base called cent centre circle common Const contained decimal denominator describe difference distance divided divisible divisor double draw drawn equal equation evident example expression factor figures Find four fraction give given greater half Hence hour integer interest join less letters logarithm measure meet metres miles Multiply negative obtained opposite parallel parallelogram pass perpendicular places positive PROOF.-Because Q. E. D. Proposition quantity quotient ratio rectangle Reduce remainder respectively result right angles rule segment sides square square root straight line subtraction third touch triangle twice units whole
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.