Introduction to Linear DrawingCummings, Hilliard,, 1825 - 64 σελίδες |
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Σελίδα 4
... less . It is this opening of the sides which determines the size of the angle , and not the length of the sides , which if lengthened out ever so far would not affect the size of the angle . ( 9 ) ( 10 ) Х Imagine two lines which cross ...
... less . It is this opening of the sides which determines the size of the angle , and not the length of the sides , which if lengthened out ever so far would not affect the size of the angle . ( 9 ) ( 10 ) Х Imagine two lines which cross ...
Σελίδα 16
... less , it should only be allowed when despatch is required . A radius is a right line drawn from the centre of a circle to any part of its circumference . ( fig . 1. ) A diameter of a circle is a right line drawn from one side of the ...
... less , it should only be allowed when despatch is required . A radius is a right line drawn from the centre of a circle to any part of its circumference . ( fig . 1. ) A diameter of a circle is a right line drawn from one side of the ...
Σελίδα 25
... less distant from each other , and may even intersect or cut each other . A radius drawn from the centre to the point of contact will be perpen- dicular to the tangent . 2. Draw four tangents to two circles . ( fig . 1. ) There may be ...
... less distant from each other , and may even intersect or cut each other . A radius drawn from the centre to the point of contact will be perpen- dicular to the tangent . 2. Draw four tangents to two circles . ( fig . 1. ) There may be ...
Σελίδα 28
... less than 90 will make an acute an- gle , and more than 90 degrees will form an obtuse an- gle : thus , in fig . 4 , 30 degrees form an acute angle , and the remaining 150 degrees of the half circle form an obtuse angle . Angles ...
... less than 90 will make an acute an- gle , and more than 90 degrees will form an obtuse an- gle : thus , in fig . 4 , 30 degrees form an acute angle , and the remaining 150 degrees of the half circle form an obtuse angle . Angles ...
Σελίδα 30
... less lengthened , as in figures 9 to 13. To make an ellipse : first cross two perpendicular right lines ; the upper and lower halves to be of equal length , and the right and left hand to be equal also . You thus obtain the longest and ...
... less lengthened , as in figures 9 to 13. To make an ellipse : first cross two perpendicular right lines ; the upper and lower halves to be of equal length , and the right and left hand to be equal also . You thus obtain the longest and ...
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Arithmetick axis called circumference circumscribe column comma cone cord CORINTHIAN ORDER cubick feet Cut a circle cylinder decimal Describe a circle diagonal divide DORICK ORDER dotted line draw a perpendicular Draw a right draw an arc Draw an oblique draw right lines ellipse ENTABLATURE equal sides Example fillets find the surface four sides given point graduated semicircle half diameter halves height hexagon horizontal lines hundredths inches long intercolumniation Ionick isoceles triangle length lengthened mark its centre measure Modules monitor Monitorial School Multiply the base obtuse ogee parallel sides parallelogram parallelopiped PEDESTAL plane parallel preceding figures Prob PROBLEM proportions pupil quarter quarter-round radius Raise a perpendicular rectangle regular polygon right angled triangle right line drawn RULE sandths scalene scalene triangle sided polygon sixth class smaller sides solid contents square inches square yards string subtract superficies tenths thousandths three equal torus trapezium triangular prism Tuscan upright