Introduction to Linear DrawingCummings, Hilliard,, 1825 - 64 σελίδες |
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Σελίδα v
... polygons , and polyedrons , or solid figures of many sides . The third class make circles , and regular polygons . The fourth draw a protracter , make angles of a given opening , draw ellipses , cylinders , cones , spheres , & c . The ...
... polygons , and polyedrons , or solid figures of many sides . The third class make circles , and regular polygons . The fourth draw a protracter , make angles of a given opening , draw ellipses , cylinders , cones , spheres , & c . The ...
Σελίδα 11
... polygon means many - angled . To make a polygon , the best method is , first to place dots at the angles , and then draw right lines from dot to dot . 5. Make a five sided polygon of unequal sides . ( fig.5 . ) 6. Make two polygons of ...
... polygon means many - angled . To make a polygon , the best method is , first to place dots at the angles , and then draw right lines from dot to dot . 5. Make a five sided polygon of unequal sides . ( fig.5 . ) 6. Make two polygons of ...
Σελίδα 12
Louis-Benjamin Francœur, William Bentley Fowle. 10. Draw a polygon , and from a central point draw diagonals , then draw a parallel polygon within and outside of the first drawn . ( fig . 8. ) ( 9 ) ( 10 ) 11. Make a triangular pyramid ...
Louis-Benjamin Francœur, William Bentley Fowle. 10. Draw a polygon , and from a central point draw diagonals , then draw a parallel polygon within and outside of the first drawn . ( fig . 8. ) ( 9 ) ( 10 ) 11. Make a triangular pyramid ...
Σελίδα 13
... polygon , and the height falls in the centre of it , the pyramid is upright and regular ; such are figures 10 , 11 and 12 . 16. On two polygons of parallel sides , raise a pyramid . ( fig . 12. ) This is merely another way of performing ...
... polygon , and the height falls in the centre of it , the pyramid is upright and regular ; such are figures 10 , 11 and 12 . 16. On two polygons of parallel sides , raise a pyramid . ( fig . 12. ) This is merely another way of performing ...
Σελίδα 19
... polygon has all the points of its angles touch- ing a circle , it is said to be inscribed in a circle , and the circle circumscribes the polygon .. 18. Double an arc of a circle . ( fig . 6. ) This is more difficult than Prop . 11 ...
... polygon has all the points of its angles touch- ing a circle , it is said to be inscribed in a circle , and the circle circumscribes the polygon .. 18. Double an arc of a circle . ( fig . 6. ) This is more difficult than Prop . 11 ...
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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