A Complete Key to Gummere's Surveying: In which the Operations of All the Examples, Not Solved in that Work are Exhibited at Large ... |
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Common terms and phrases
AB² AB³ ABCD angles and side B{sin BC+AC bearing 25 bearing 32 bearing 66 bearing and distance BENJAMIN HALLOWELL bisect Calculation centre changed bearing COMLY'S Construction cosec Demonstration departure describe the semicircle diff Dist division line draw equal Euclid EXAMPLE find AC find CD find log find the angle given area given bearings given distances given side GUMMERE'S SURVEYING Half sum Hence join N.
S.
E.
W.
E. D. D. W. D. D. Mult N.
S.
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W. Cor North parallel PROBLEM 12 pronunciation protract the figure QUESTION radius To tang rectangle secant bearing secant of bearing similar triangles spelling SPELLING-BOOK square triangle ABC words
Popular passages
Page 54 - AB, equal to the greater of the given sides '(20). Draw BD perpendicular to AB, equal to twice the given area, divided by AB (12.39). Through D draw DC parallel to AB. Then if AC be made equal to the other given side (16.25), and BC be joined ; ABC will be the triangle. For the Division Line. Make AP = 8.50 the given distance. Take AF to AC in the ratio of the part to be cut off to the whole area. Join PF, draw BG parallel to it ; then PG will be the division line. Demonstration. AB : AP : : AG :...
Page 76 - AB, (PL 4, fig. 9.) = the given side, and divide it in D, so that AD may be to DB in the ratio of 3 to 2 ; in AB produced, take DO a fourth proportional to...