Introduction to Linear DrawingCummings, Hilliard,, 1825 - 64 σελίδες |
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Σελίδα 21
... polygon has all its sides equal , and all its angles of an equal opening . When such a polygon is inscribed in a circle , the sides are cords of equal arcs , and the points cut the circle into equal parts . 26. Inscribe a regular ...
... polygon has all its sides equal , and all its angles of an equal opening . When such a polygon is inscribed in a circle , the sides are cords of equal arcs , and the points cut the circle into equal parts . 26. Inscribe a regular ...
Σελίδα 22
... polygon . 33. Inscribe a circle in a triangle . ( fig . 19. ) To find the centre of the circle , draw a line from the middle of either side of the triangle to the point oppo- site , then do the same by another side and its opposite ...
... polygon . 33. Inscribe a circle in a triangle . ( fig . 19. ) To find the centre of the circle , draw a line from the middle of either side of the triangle to the point oppo- site , then do the same by another side and its opposite ...
Σελίδα 23
... polygon . Then draw a radius to each point , and six tangents perpendicular to the radii will form the regular polygon required . 37. Inscribe and circumscribe a circle with regular and parallel 23.
... polygon . Then draw a radius to each point , and six tangents perpendicular to the radii will form the regular polygon required . 37. Inscribe and circumscribe a circle with regular and parallel 23.
Σελίδα 32
... circumference , and you have a cylinder . A piece of the funnel of a stove is a cylinder . A cylinder is , in fact , a prism whose bases are circles instead of polygons . The height of a cylinder is the length of the 32.
... circumference , and you have a cylinder . A piece of the funnel of a stove is a cylinder . A cylinder is , in fact , a prism whose bases are circles instead of polygons . The height of a cylinder is the length of the 32.
Σελίδα 58
... polygon , or a pyra- mid , is found by taking separately the surfaces of the triangles of which they are composed ... polygon has a diagonal of 66 feet , 3,8 inches ; the height of one triangle is 22 feet , 6,6 inches ; and of the other ...
... polygon , or a pyra- mid , is found by taking separately the surfaces of the triangles of which they are composed ... polygon has a diagonal of 66 feet , 3,8 inches ; the height of one triangle is 22 feet , 6,6 inches ; and of the other ...
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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