Elements of geometry, containing books i. to vi.and portions of books xi. and xii. of Euclid, with exercises and notes, by J.H. SmithRivingtons, 1872 - 349 sider |
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Side 122
... CHORD . DEF . III . The two portions , into which a chord divides the circumference , as ABC and ADC , are called ARCS . B P D DEF . IV . The two figures into which a chord divides the circle , as ABC and ADC , that is , the figures ...
... CHORD . DEF . III . The two portions , into which a chord divides the circumference , as ABC and ADC , are called ARCS . B P D DEF . IV . The two figures into which a chord divides the circle , as ABC and ADC , that is , the figures ...
Side 123
... chord of a circle at right angles , must contain the centre . F B Let ABC be the given O. Let the st . line CE bisect the chord AB at rt . angles in D. Then the centre of the must lie in CE . For if not , let O , a pt . out of CE , be ...
... chord of a circle at right angles , must contain the centre . F B Let ABC be the given O. Let the st . line CE bisect the chord AB at rt . angles in D. Then the centre of the must lie in CE . For if not , let O , a pt . out of CE , be ...
Side 125
... chords in a circle , is also perpendicular to them . Ex . 3. Through a given point within a circle , which is not the centre , draw a chord which shall be bisected in that point . PROPOSITION IV . THEOREM . If in a circle two Book III ...
... chords in a circle , is also perpendicular to them . Ex . 3. Through a given point within a circle , which is not the centre , draw a chord which shall be bisected in that point . PROPOSITION IV . THEOREM . If in a circle two Book III ...
Side 126
... chords , which do not both pass through the centre , cut one another , they do not bisect each other . Let the chords AB , CD , which do not both pass through the centre , cut one another , in the pt . E , in the O ACBD . Then AB , CD ...
... chords , which do not both pass through the centre , cut one another , they do not bisect each other . Let the chords AB , CD , which do not both pass through the centre , cut one another , in the pt . E , in the O ACBD . Then AB , CD ...
Side 127
... chords DCE , FCG are drawn equally in- clined to AB and terminated by the circles : prove that DE and FG are equal . NOTE . Circles which have the same centre are called Con- centric . NOTE 1. On the Contact of Circles . DEF . Book III ...
... chords DCE , FCG are drawn equally in- clined to AB and terminated by the circles : prove that DE and FG are equal . NOTE . Circles which have the same centre are called Con- centric . NOTE 1. On the Contact of Circles . DEF . Book III ...
Andre utgaver - Vis alle
Elements of geometry, containing books i. to vi.and portions of books xi ... Euclides,James Hamblin SMITH Uten tilgangsbegrensning - 1876 |
Elements of Geometry, Containing Books I. to Vi.And Portions of Books Xi ... James Hamblin Smith,Euclides Ingen forhåndsvisning tilgjengelig - 2022 |
Elements of Geometry, Containing Books I. to VI.and Portions of Books XI ... James Hamblin Smith,Euclides Ingen forhåndsvisning tilgjengelig - 2018 |
Vanlige uttrykk og setninger
ABCD AC=DF angles equal angular points base BC bisecting the angle centre chord circumference coincide diagonals diameter divided equal angles equal circles equiangular equilateral triangle equimultiples Eucl Euclid exterior angle given circle given line given point given st given straight line greater Hence hypotenuse inscribed isosceles triangle less Let ABC Let the st lines be drawn magnitudes middle points multiple opposite angles opposite sides parallel parallelogram perpendicular polygon produced Prop prove Q. E. D. Ex Q. E. D. PROPOSITION quadrilateral radius ratio rectangle contained Reflex Angles required to describe rhombus right angles segment semicircle shew shewn straight line joining subtended sum of sqq Take any pt tangent THEOREM trapezium triangle ABC triangles are equal vertex vertical angle
Populære avsnitt
Side 52 - 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.
Side 17 - If two triangles have two angles of the one equal to two angles of the other, each to each ; and one side equal to one side, viz.
Side 167 - If from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Side 69 - The complements of the parallelograms which are about the diameter of any parallelogram, are equal to one another. Let ABCD be a parallelogram, of which the diameter is AC...
Side 106 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line ; it is required to draw a straight line through the point A, parallel to the straight hue BC.
Side 88 - If a straight line be bisected, and produced to any point, the square on the whole line thus produced, and the square on the part of it produced, are together double of the square on half the line bisected; and of the square on the line made up of the half and the part produced. Let the straight line AB be bisected in C, and produced to the point D. Then the squares on AD, DB, shall be double of the squares on AC, CD.
Side 78 - 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.
Side 91 - In every triangle, the square on the side subtending either of the acute angles, is less than the squares on the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the acute angle and the perpendicular let fall upon it from the opposite angle, Let ABC be any triangle, and the angle at B one of its acute angles, and upon BC, one of the sides containing it, let fall the perpendicular AD from the opposite angle.
Side 5 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Side 5 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.