A course of practical geometry for mechanics1856 |
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Página 4
... a straight line , which in a rectangular drawing is parallel to the base of the paper . In many good drawings , the horizon is not drawn parallel to the base , because positions are given to objects which would require more paper than ...
... a straight line , which in a rectangular drawing is parallel to the base of the paper . In many good drawings , the horizon is not drawn parallel to the base , because positions are given to objects which would require more paper than ...
Página 13
... lines is a rectangle , having one of the given lines for its base , and the other for its height . 89. A Multiple of a line or figure is another line or figure that is exactly 2 , 3 , 4 , or any other number of times as large as the first ...
... lines is a rectangle , having one of the given lines for its base , and the other for its height . 89. A Multiple of a line or figure is another line or figure that is exactly 2 , 3 , 4 , or any other number of times as large as the first ...
Página 16
William Pease J A Pease. PROBLEMS . PROBLEM I. To bisect a given rectilineal angle , that is , to divide it into two equal parts . Let two right lines be drawn , of any length , contain- ing the given angle . Print ( with the lead pencil ) ...
William Pease J A Pease. PROBLEMS . PROBLEM I. To bisect a given rectilineal angle , that is , to divide it into two equal parts . Let two right lines be drawn , of any length , contain- ing the given angle . Print ( with the lead pencil ) ...
Página 17
... straight lines crossing each other in any direction , and bisect each of the four angles thus formed . If the operations be ... straight line . PROBLEM II . At a given point in a given straight line , to make an angle equal to a given ...
... straight lines crossing each other in any direction , and bisect each of the four angles thus formed . If the operations be ... straight line . PROBLEM II . At a given point in a given straight line , to make an angle equal to a given ...
Página 19
... straight lines meeting each other , and determine the number of degrees in the contained angle . 4. Make an angle to ... given number of degrees . 1. Draw a line , as A. B , and take the point O in it . 2. Place the protractor across the ...
... straight lines meeting each other , and determine the number of degrees in the contained angle . 4. Make an angle to ... given number of degrees . 1. Draw a line , as A. B , and take the point O in it . 2. Place the protractor across the ...
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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...