Introduction to Linear DrawingCummings, Hilliard,, 1825 - 64 σελίδες |
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Σελίδα v
... right lines , angles , parallels , per- pendiculars and triangles . The second class draw polygons , and polyedrons , or solid figures of many sides . The third class make circles , and regular polygons . The fourth draw a protracter ...
... right lines , angles , parallels , per- pendiculars and triangles . The second class draw polygons , and polyedrons , or solid figures of many sides . The third class make circles , and regular polygons . The fourth draw a protracter ...
Σελίδα 4
... angle . ( 9 ) ( 10 ) Х Imagine two lines which cross each other as in fig- ures 9 and 10. They will make four angles . These are right angles if they are equal , and they will be equal if one line is perpendicular to the line it crosses ...
... angle . ( 9 ) ( 10 ) Х Imagine two lines which cross each other as in fig- ures 9 and 10. They will make four angles . These are right angles if they are equal , and they will be equal if one line is perpendicular to the line it crosses ...
Σελίδα 5
... angle with a right line , and you make a triangle , a figure which has three angles and three sides . The base is the side on which the triangle is suppos- ed to rest . The apex of a triangle is the point opposite to the base . The ...
... angle with a right line , and you make a triangle , a figure which has three angles and three sides . The base is the side on which the triangle is suppos- ed to rest . The apex of a triangle is the point opposite to the base . The ...
Σελίδα 6
... right angled triangle , ( figs . 12 and 13. ) This is a triangle of which one of the angles is a right angle , as the lower left hand one in fig . 12 , and the top one in fig . 13. The base may be horizontal or inclined . 27. Make a ...
... right angled triangle , ( figs . 12 and 13. ) This is a triangle of which one of the angles is a right angle , as the lower left hand one in fig . 12 , and the top one in fig . 13. The base may be horizontal or inclined . 27. Make a ...
Σελίδα 7
Louis-Benjamin Francœur, William Bentley Fowle. right hand lower angles are as far apart as the other two angles are . Figure 14 is what is often called a long or oblong squure . 29. Make a rectangle , and cut it into equal right angles ...
Louis-Benjamin Francœur, William Bentley Fowle. right hand lower angles are as far apart as the other two angles are . Figure 14 is what is often called a long or oblong squure . 29. Make a rectangle , and cut it into equal right angles ...
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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