A complete treatise on practical land-surveying, in seven parts; . 43. A chord is a right line joining the extremities of an arc ;as the line A B. 44. A segment is any part of a circle hounded by an arc andits chord. 45. A semicircle is half of a circle, or a segment cut off bythe diameter; as A B 46. A sector is any part of a circle bounded by an arc, andtwo radii. 47. A quadrant is the fourth part of a circle, or a sectorbounded by an arc and two radii at right angles to each other ;as C D B. Corol. Hence a right angle is said to contain 90°. Note.—All Definitions and Rules should be com
A complete treatise on practical land-surveying, in seven parts; . 43. A chord is a right line joining the extremities of an arc ;as the line A B. 44. A segment is any part of a circle hounded by an arc andits chord. 45. A semicircle is half of a circle, or a segment cut off bythe diameter; as A B 46. A sector is any part of a circle bounded by an arc, andtwo radii. 47. A quadrant is the fourth part of a circle, or a sectorbounded by an arc and two radii at right angles to each other ;as C D B. Corol. Hence a right angle is said to contain 90°. Note.—All Definitions and Rules should be committed to memory. GEOMETRICAL PROBLEMS. PROBLEM I. To bisect a given Line A B, in n From A and B as centres, with any radius greater than halfA B, in your compasses, describe arcs cutting each other inm and n. Draw the line m C n, and it will bisect A B in 0. 12 LAND-SURVEYING. (Part. J. PROBLEM II. To bisect a given Angle A B
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