A System of Geometry and Trigonometry: Together with a Treatise on Surveying: Teaching Various Ways of Taking the Survey of a Field; Also to Protract the Same and Fine the Area. Likewise, Rectangular Surveying; Or, an Accurate Method of Calculating the Area of Any Field Arithmetically, Without the Necessity of Plotting It. To the Whole are Added Several Mathematical Tables ... with a Particular Explanation ... and the Manner of Using Them ...O. D. Cooke, 1813 - 168 σελίδες |
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Αποτελέσματα 1 - 5 από τα 17.
Σελίδα 10
... Arch or Arc of a Circle is any part of the Circumference ; as BF or FD , Fig . 5 ; and is said to be an Arch of so many Degrees as it contains parts of 360 into which the whole Circle is divided . 16. A Chord is a Right Line drawn from ...
... Arch or Arc of a Circle is any part of the Circumference ; as BF or FD , Fig . 5 ; and is said to be an Arch of so many Degrees as it contains parts of 360 into which the whole Circle is divided . 16. A Chord is a Right Line drawn from ...
Σελίδα 11
... Arch less than a Semicircle ; as BCD or ACD . Fig . 6 . 20. The Sine of an Arch is a Line drawn from one end of the Arch , perpendicular to the Radius or Diam- eter drawn through the other end : Or , it is half the Chord of double the ...
... Arch less than a Semicircle ; as BCD or ACD . Fig . 6 . 20. The Sine of an Arch is a Line drawn from one end of the Arch , perpendicular to the Radius or Diam- eter drawn through the other end : Or , it is half the Chord of double the ...
Σελίδα 12
... Arch is called the Co - Sine , Co Tangent or Co - Secant of the Arch ; thus FH is the Sine , DI the Tangent and CI the Secant of the Arch DH ; or they are the Co - Sine , Co - Tangent and Co - Secant of the Arch BH . Fig 7 . 28. The ...
... Arch is called the Co - Sine , Co Tangent or Co - Secant of the Arch ; thus FH is the Sine , DI the Tangent and CI the Secant of the Arch DH ; or they are the Co - Sine , Co - Tangent and Co - Secant of the Arch BH . Fig 7 . 28. The ...
Σελίδα 14
... Arch C. A more convenient way to draw parallel Lines is with a parallel Rule . PROBLEM II . To bisect a given Line ... Arch above and below the Line , as at C and D ; with the same distance , and one foot in B de- scribe Arches to cross ...
... Arch C. A more convenient way to draw parallel Lines is with a parallel Rule . PROBLEM II . To bisect a given Line ... Arch above and below the Line , as at C and D ; with the same distance , and one foot in B de- scribe Arches to cross ...
Σελίδα 15
... Arch to cut the given Line in two places , as at F and G ; upon F and G describe two Arches to intersect each other be- low the Line as at D ; lay a Rule from C to D and draw a Line from C to the given Line . Perpendiculars may be more ...
... Arch to cut the given Line in two places , as at F and G ; upon F and G describe two Arches to intersect each other be- low the Line as at D ; lay a Rule from C to D and draw a Line from C to the given Line . Perpendiculars may be more ...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Δημοφιλή αποσπάσματα
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 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
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.
Σελίδα 40 - Let his attention first be directed to the map, and inform him that the top is north, the bottom south, the right hand east, and the left hand west.