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according accurately added Arch Base Bearing C.Secant C.Sine calculated called Chord Circle Co-Sine Compass contained Course Decimals Dep Lat describe Diagonal Difference directions Dist Distance divided double draw drawn East equal EXAMPLE Field FIELD BOOK figures find the Area find the Leg four fourth give given gles greater half Hypothenuse Index Land Left Leg BC length less Line Links Logarithm Look manner measure method multiply N.CO N.S. NCS Natural Sines North North Areas Note opposite particular Perpendicular places PLATE Plot Point preceding PROBLEM Product Proportions protract Quotient Radius Remainder represent Rule Scale Secant Side Sine C.Tang Sine Sine Sine South Areas Square Star Station subtracted Suppose Surveying Surveyor Table Tang Tangent third Trapezoid Triangle TRIGONOMETRY true West whole
Σελίδα 26 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Σελίδα 8 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Σελίδα 25 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 25 - The solution of this CASE depends on the following PROPOSITION. In every Plane Triangle, As the Sum of any two Sides ; Is to their Difference ; So is the Tangent of half the Sum of the two opposite Angles ; To the Tangent of half the Difference between them. Add this half difference to half the Sum of the Angles and you will have the greater Angle ; and...
Σελίδα 8 - The radius of a circle is a line drawn from the centre to the circumference, as A, B.
Σελίδα 40 - Field work and protraction are truly taken and performed ; if not, an error must have been committed in one of them : In such cases make a second protraction ; if this agrees with the former, it is to be presumed the fault is in the Field work ; a re-survey must then be taken.