Elementary Mechanical Drawing: Theory and Practice

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McGraw-Hill book Company, Incorporated, 1915 - Geometrical drawing - 250 pages
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Page 224 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the center.
Page 198 - A cycloid is generated by a point on the circumference of a circle, when the circle rolls on a straight line.
Page 189 - Draw two diameters AB and CD at right angles to each other. Bisect the radius eB.
Page 217 - An acute angle is less than a right angle.* -? An obtuse angle is greater than a right angle and less than a straight angle.
Page 195 - AB of the circle into as many equal parts as the polygon is to have sides. With the points A and B as centers and radius AB, describe arcs cutting each other at C.
Page 209 - ... possible ways to define the circumference of a circle. Statically, the circumference of a circle can be defined as the locus of all points in a plane a given distance from some point in the plane which we designate as the center. On the other hand, we could define the circumference kinematically as the curve generated by a point moving in a plane in such a way that it is always the same distance from some point in the plane designated as the center and it returns to the position of departure....
Page 212 - One of the conic sections, being a curve formed by the intersection of the surface of a cone with a plane parallel to one of its sides.
Page 229 - Find the length of the arc of a circle whose radius is 7.5 inches and the number of degrees subtended by the arc is 67 15'.
Page 217 - Thus when it is said that the sum of the three angles of any triangle is equal to two right angles, this is a theorem, the truth of which is demonstrated by Geometry.
Page 235 - The volume of a spherical pyramid is equal to the area of its base multiplied by one-third the radius of the sphere.

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