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acres adjustment base line calculated centre line chain lines chord circle circumference circumferentor clinometer column compass cross sections curve cutting cyphers datum line decimal describe the arc diameter difference divided division divisor draw the line embankment equal Example feet fence field-book figures fixed flag frustrum geometrical given number ground half height horizontal inches instrument intersecting land length line A B logarithm mark measure method multiply natural number needle number of degrees object Od Od Od offsets opposite parallelogram perpendicular plotted poles polygon Problem proportion protractor quantity quotient radius railway reduced regular polygon roads roods Rule scale screw secant sector shown side A B sine slopes spirit level square links staff station straight edge subtract surface survey surveyor take the angle telescope theodolite tie line transverse distance trapezium vernier vertical vulgar fraction whole numbers width
Side 102 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 31 - When a straight line standing on another straight line, makes the adjacent angles equal to one another, each of the angles is called a, right angle ; and the straight line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. 13. A term or boundary is the extremity of any thing.
Side 325 - Plan shall be added of any Building, Yard, Courtyard, or Land within the curtilage of any Building, or of any Ground cultivated as a Garden...
Side 140 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Side 138 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees...
Side 326 - All places where for a distance of thirty feet and upwards there will be a less space than nine feet six inches between the outside of the footpath on either side of the street or road and the nearest rail of the tramway...