A course of practical geometry for mechanicsSimpkin and Marshall, 1843 - 68 sider |
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Resultat 1-5 av 27
Side 5
... A POINT is that which hath no parts , or which hath no magnitude . A point has also been defined , as having position , but no magnitude . On reading the foregoing definition , the intelligent stu- dent will at once perceive that ...
... A POINT is that which hath no parts , or which hath no magnitude . A point has also been defined , as having position , but no magnitude . On reading the foregoing definition , the intelligent stu- dent will at once perceive that ...
Side 7
... given to objects which would require more paper than could be spared to assign to the horizon its true position ; but this is never forgotten either by the experienced draughts- man , or the judicious connoisseur . 4. A ... point of contact .
... given to objects which would require more paper than could be spared to assign to the horizon its true position ; but this is never forgotten either by the experienced draughts- man , or the judicious connoisseur . 4. A ... point of contact .
Side 8
William Pease. VII . A Plane Superficies is that in which any two points being taken , the straight line between them . lies wholly in that superficies . Every plane superficies is completely flat or even , and is either Horizontal ...
William Pease. VII . A Plane Superficies is that in which any two points being taken , the straight line between them . lies wholly in that superficies . Every plane superficies is completely flat or even , and is either Horizontal ...
Side 16
... a circle , the angle contained by them is called the angle at the Centre of the circle ; and if from the points where these radii touch the circumference , two lines be drawn to any other point in the circumference , the angle contained ...
... a circle , the angle contained by them is called the angle at the Centre of the circle ; and if from the points where these radii touch the circumference , two lines be drawn to any other point in the circumference , the angle contained ...
Side 17
... a straight line is to lengthen it in the same straight line . 61. A Generatrix is that by which something is generated ; thus , to give motion to a point , it becomes a generatrix , and a line is the result . In like manner a line may ...
... a straight line is to lengthen it in the same straight line . 61. A Generatrix is that by which something is generated ; thus , to give motion to a point , it becomes a generatrix , and a line is the result . In like manner a line may ...
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Vanlige uttrykk og setninger
60 degrees altitude angle equal arc or angle Bisect called centre chords shall form circumference curvilineal cutting A B decagon describe a circle describe a regular describe an arc describe arcs cutting diagonals diameter dodecagon Draw a line Draw chords draw lines Draw the line ellipse equilateral triangle Euclid Euclid's Elements EXAMPLE generatrix geometry given angle given circle given line given point given right line given triangle gonals heptagon inches long inscribe isosceles triangle Join length Let A B line 2 inches line A B line parallel LVIII number of degrees number of equal parallel ruler parallelogram pentagon perpendicular plane point of intersection protractor radii radius ratio rectangle regular nonagon regular polygon rhombus right angles right-angled triangle segment square equal straight line superficies tangent trapezium triangle being given triangle equal triangle required vertex vertical angle Vide Def vide Prob
Populære avsnitt
Side 8 - A plane rectilineal angle is the inclination of two straight lines to one another, -which meet together, but are not in the same straight line.
Side 10 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 9 - CHG; and they are adjacent angles; but when a straight line standing on another straight line makes the adjacent angles equal to one another...
Side 9 - 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 13 - Of four-sided figures, a SQUARE is that which has all its sides equal, and all its angles right angles.
Side 9 - 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.
Side 14 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Side 8 - A plane angle is the inclination of two lines to one another* in a plane, which meet together, but are not in the same direction.
Side 13 - A rhomboid, is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles.
Side 8 - DBC, or CBD ; but, if there be only one angle at a point, it may be expressed by a letter placed at that point ; as the angle at E.