A course of practical geometry for mechanicsSimpkin and Marshall, 1843 - 68 sider |
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Resultat 1-5 av 25
Side 7
... contain an Oblique Angle , i . e . , one which is either greater , or less than a right angle . 6. A Tangent is a line that touches a circle , or any other curve without cutting it ; also , a line or circle is tangential , or is a ...
... contain an Oblique Angle , i . e . , one which is either greater , or less than a right angle . 6. A Tangent is a line that touches a circle , or any other curve without cutting it ; also , a line or circle is tangential , or is a ...
Side 8
... contain the angle meet one another , is put between the other two ' letters , and one of these two is 6 6 A ' somewhere upon one of those straight lines , and the other upon the other line : Thus , the angle B ' which is contained by ...
... contain the angle meet one another , is put between the other two ' letters , and one of these two is 6 6 A ' somewhere upon one of those straight lines , and the other upon the other line : Thus , the angle B ' which is contained by ...
Side 9
... contained between those lines , the vertex being its centre , and the radius taken at pleasure . XIII . " A term or boundary is the extremity of any thing . " XIV . A figure is that which is enclosed by one or more boundaries . It is ...
... contained between those lines , the vertex being its centre , and the radius taken at pleasure . XIII . " A term or boundary is the extremity of any thing . " XIV . A figure is that which is enclosed by one or more boundaries . It is ...
Side 10
... contained by two radii , the angle formed by these radii will contain one de- gree ; and in like manner , a right angle contains 90 degrees ; because the arc which measures it is equal to one fourth part of the circumference of a circle ...
... contained by two radii , the angle formed by these radii will contain one de- gree ; and in like manner , a right angle contains 90 degrees ; because the arc which measures it is equal to one fourth part of the circumference of a circle ...
Side 11
... contain more or less , but can never contain exactly 180 degrees . 21. The complement of an arc or angle , is the difference between it and an arc or angle of 90 degrees ; thus , the com- plement of an arc or angle of 30 degrees , is an ...
... contain more or less , but can never contain exactly 180 degrees . 21. The complement of an arc or angle , is the difference between it and an arc or angle of 90 degrees ; thus , the com- plement of an arc or angle of 30 degrees , is an ...
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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.