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abscissa asymptote axis Base Bisect the line Books called centre f Chords circumference compasses conjugate construct contain continue corner curve describe an arc diagram diameter dimensions direction distance divide division double draw a line Draw the line ellipse equal example extent figure five focus foot formed four Geometry give given circle given line given right line half hand Hexagon Hyperbola inscribe interior focus intersect the arc Join length letter line A B line drawn marked Mathematics measure meet method observing operation opposite side Page Parabola parallel Parallel ruler pass perpendicular point of intersection polygon practical PROBLEM proceed produce proportional Protractor pupil radius raised regular respectively right angle rule scale scale of Chords segment semicircle space square strike Suppose tangent triangle vertex ywvia gonia
Page 58 - But, if the angle C be not a right angle; at the point A, in the straight line AB, make * the angle BAD equal to the angle C...
Page 74 - The frustum of a cone is the part ih.n remains, when the top is cut off by a plane parallel to the base ; and is otherwise called a truncated cone.
Page 76 - ... or practice. The real inventor of this valuable instrument is unknown ; yet of so much merit has the invention appeared, that it was claimed by Galileo, and disputed by nations. This instrument derives its name from the tenth definition of the third book of Euclid, where he defines the sector of a circle. It is formed of two equal rules called legs ; these legs are...
Page 9 - Fig. 14. bound it. 34. A CIRCLE is a plane figure bounded by a curved line, called the Circumference or Periphery ; which is every where equally distant from a certain point within it, called the CENTRE. An ARC is any part of the circumference. 35. The DIAMETER of a circle, is a straight line drawn through the centre and terminating in the circumference on each side.