First Practical Lines of Geometrical Drawing ...Williams and Norgate, 1865 - 169 páginas |
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... methods , and although he obtains the same correct results , he exposes his book to be rejected by those who , unac ... method , I have selected what my experience induced me to consider as most useful . When I have found it necessary ...
... methods , and although he obtains the same correct results , he exposes his book to be rejected by those who , unac ... method , I have selected what my experience induced me to consider as most useful . When I have found it necessary ...
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... method of construction Exercises 156 157 Oblique Perspective , method of construction Exercises 159 162 PRACTICAL LINES IN GEOMETRICAL DRAWING . As in the following vi CONTENTS .
... method of construction Exercises 156 157 Oblique Perspective , method of construction Exercises 159 162 PRACTICAL LINES IN GEOMETRICAL DRAWING . As in the following vi CONTENTS .
Página 9
... method has the advantage of enabling us to obtain lengths of greater magnitude than those offered by the scale . Required a line 9.92 inches long . Take that distance on the inch scale and double it . Required a space of 16.765 inches ...
... method has the advantage of enabling us to obtain lengths of greater magnitude than those offered by the scale . Required a line 9.92 inches long . Take that distance on the inch scale and double it . Required a space of 16.765 inches ...
Página 8
... method of construction has been given of 100 to 1 inch , mark off with a red line , or with a dark pencil , spaces of 1.7 , 3.45 , 4.78 , 5.27 , 5.655 and 5.785 . Should we require to obtain these distances on the scale of 200 to 1 inch ...
... method of construction has been given of 100 to 1 inch , mark off with a red line , or with a dark pencil , spaces of 1.7 , 3.45 , 4.78 , 5.27 , 5.655 and 5.785 . Should we require to obtain these distances on the scale of 200 to 1 inch ...
Página 9
... method has the advantage of enabling us to obtain lengths of greater magnitude than those offered by the scale . Required a line 9.92 inches long . Take that distance on the inch scale and double it . Required a space of 16.765 inches ...
... method has the advantage of enabling us to obtain lengths of greater magnitude than those offered by the scale . Required a line 9.92 inches long . Take that distance on the inch scale and double it . Required a space of 16.765 inches ...
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Términos y frases comunes
altitude angle of 30 angle of 45 axis base bisect centre circumference compass cone Construct a scale contours cube cylinder describe a circle describe the arc Descriptive Geometry determine the position diagonal scales diameter dihedral angle divided draw a line ellipse equal feet long forming an angle furlongs given line given point ground line height horizontal plane horizontal projection horizontal trace inch side inches edge inches high inches long isometric isometric projection join length miles oblique obtained parallel to x y parallelogram pendicular pentagon pentagonal pyramid perpendicular to x y perspective picture plane plane inclined planes of projection polygon primary division prism protractor pyramid radius ray of light representative fraction rhombus right angles sector shadow slope space square square pyramid straight line tangent tical tion versts vertical plane vertical projection vertical trace
Pasajes populares
Página 5 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Página 6 - If a straight line drawn through the centre of a circle bisect a straight line in it which does not pass through the centre, it shall cut it at right angles : and if it cut it at right angles, it shall bisect it.
Página 5 - 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 5 - If a straight line fall on two parallel straight lines, it makes the alternate angles equal to one another, and the exterior angle equal to the interior and opposite angle on the same side; and also the two interior angles on the same side together equal to two right angles.
Página 6 - IF a straight line be drawn parallel to one of the sides of a triangle, it shall cut the other sides, or those produced, proportionally; and if the sides, or the sides produced, be cut proportionally, the straight line which joins the points of section shall be parallel to the remaining side of the triangle...
Página 57 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed.
Página 57 - A prism is a solid figure contained by plane figures, of which two that are opposite are equal, similar, and parallel to one another ; and the others parallelograms. XIV. A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved.
Página 58 - The base of .a cone is the circle described by that side containing the right angle which revolves.
Página 6 - In equal circles, angles, whether at the centres or circumferences, have the same ratio which the circumferences on which they stand have to one another ; so also have the sectors.
Página 5 - TRIANGLES upon the same base, and between the same parallels, are equal to one another.