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 32.
Σελίδα 7
... measuring Land , and is divided into three Sections . The first contains several Problems respecting Mensuration , and for finding the Area of various Right - lined Figures and Circles . The second Section teaches different methods of ...
... measuring Land , and is divided into three Sections . The first contains several Problems respecting Mensuration , and for finding the Area of various Right - lined Figures and Circles . The second Section teaches different methods of ...
Σελίδα 10
... measure of the Arch ; as HG is the Chord of the Arch HIG . Fig . 6 . Note . The Chord of an Arch of 60 degrees is equal in length to the Radius of the Circle of which the 17. The Segment of a Circle is a part of Arch is a part . GEOMETRY .
... measure of the Arch ; as HG is the Chord of the Arch HIG . Fig . 6 . Note . The Chord of an Arch of 60 degrees is equal in length to the Radius of the Circle of which the 17. The Segment of a Circle is a part of Arch is a part . GEOMETRY .
Σελίδα 12
... measure of an Angle is the Arch of a Circle contained between the two Lines which form the Angle , the angular Point being the Centre ; thus the Angle HCB . Fig 7. is measured by the Arch BH ; and is said to contain so many Degrees as ...
... measure of an Angle is the Arch of a Circle contained between the two Lines which form the Angle , the angular Point being the Centre ; thus the Angle HCB . Fig 7. is measured by the Arch BH ; and is said to contain so many Degrees as ...
Σελίδα 15
... measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E and the Angles will be equal . PROBLEM VI . To make an Acute Angle equal to a given number of Degrees , suppose 36. Fig . 27 . Draw ...
... measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E and the Angles will be equal . PROBLEM VI . To make an Acute Angle equal to a given number of Degrees , suppose 36. Fig . 27 . Draw ...
Σελίδα 16
... measured ; that is , with a Chord of 60 Degrees describe an Arch on the angular Point , and on a Scale of Chords measure the Arch intercepted by the Lines forming the angle . A more convenient method of making and measur- ing Angles is ...
... measured ; that is , with a Chord of 60 Degrees describe an Arch on the angular Point , and on a Scale of Chords measure the Arch intercepted by the Lines forming the angle . A more convenient method of making and measur- ing Angles is ...
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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.