A course of practical geometry for mechanics1856 |
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Página 7
... radii drawn to its extremities . 35. A Segment is a part of a whole ; thus , if a right line be cut into two or more parts , each part is a segment of the whole line . 36 * . A Segment of a circle is the figure contained by a straight ...
... radii drawn to its extremities . 35. A Segment is a part of a whole ; thus , if a right line be cut into two or more parts , each part is a segment of the whole line . 36 * . A Segment of a circle is the figure contained by a straight ...
Página 10
... radii , drawn from the centre of the polygon to the ex- tremities of one side . 67. The Exterior angle is that which is contained by one side and its adjacent side produced . 68. If two sides of a polygon contain an angle , whose vertex ...
... radii , drawn from the centre of the polygon to the ex- tremities of one side . 67. The Exterior angle is that which is contained by one side and its adjacent side produced . 68. If two sides of a polygon contain an angle , whose vertex ...
Página 12
... radii be drawn in a circle , the angle con- tained by them is called the angle at the Centre of the circle ; and if from the points where these radii meet the circumference , two lines be drawn to any other point in the circumference ...
... radii be drawn in a circle , the angle con- tained by them is called the angle at the Centre of the circle ; and if from the points where these radii meet the circumference , two lines be drawn to any other point in the circumference ...
Página 16
... legs are curved with equal radii . When the diagrams are drawn in ink , the pencil lines must be rubbed out . The letters of reference may be rubbed out , or inked in , at pleasure . EXAMPLES FOR PRACTICE . 1. Draw an acute angle ,
... legs are curved with equal radii . When the diagrams are drawn in ink , the pencil lines must be rubbed out . The letters of reference may be rubbed out , or inked in , at pleasure . EXAMPLES FOR PRACTICE . 1. Draw an acute angle ,
Página 32
... radii at right angles to each other , and from their extremities in the circumference draw tangents to the circle , meeting each other . Show that the figure contained by the tangents and the radii is a square . PROBLEM XXIII . To draw ...
... radii at right angles to each other , and from their extremities in the circumference draw tangents to the circle , meeting each other . Show that the figure contained by the tangents and the radii is a square . PROBLEM XXIII . To draw ...
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Términos y frases comunes
13 inches A B C A C B Aldersgate Street altitude angle equal arc or angle Arithmetical mean Bisect Book centre circumference contain an angle cutting A B describe a circle describe a regular describe an arc diagonal scale distance Divide a line Draw a line Draw chords Draw the line ellipse equilateral triangle Euclid Euclid's Elements EXAMPLES French FRENCH LANGUAGE Geometry given angle given circle given line given parallelogram given point given square given straight line given triangle Harmonical mean heptagon inch side inches long inches radius inches respectively inscribe isosceles triangle Join Let A B line 2 inches line A B number of degrees number of equal parallel parallel ruler perpendicular plain scale plane Prob PROBLEM produced Prop protractor pupil radii rectangle rectilineal figure regular pentagon regular polygon Relfe rhombus right angles right line right-angled triangle scale of chords segment square equal triangle required vertex vertical angle
Pasajes populares
Página 8 - 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 8 - 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.
Página 7 - 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.
Página 68 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.
Página 14 - An angle in a segment is the angle contained by two straight lines drawn from any point in the circumference of the segment to the extremities of the straight . line which is the base of the segment.
Página 9 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 11 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Página 7 - ... straight lines, and the other upon the other line : Thus the angle which is contained by the straight lines, AB, CB, is named the angle ABC, or CBA ; that which is contained by AB...