A Treatise on Surveying,: Containing the Theory and Practice: : to which is Prefixed a Perspicuous System of Plane Trigonometry. : The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. : Particularly Adapted to the Use of SchoolsKimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 - 206 páginas |
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Página 73
... the angle BAD = CAD- BAC = 102 ° 44 ' , and the side AB 12 , to find BD = 16.85 miles . EXAMPLE 6. Fig . 59 . A person having a triangular field , the sides of which measure AB = .50 perches , AC = 46 perches and BC = 40 perches ...
... the angle BAD = CAD- BAC = 102 ° 44 ' , and the side AB 12 , to find BD = 16.85 miles . EXAMPLE 6. Fig . 59 . A person having a triangular field , the sides of which measure AB = .50 perches , AC = 46 perches and BC = 40 perches ...
Página 74
The half of CD is = '26 .49 perches = CE = the distance of the well from each corner . . 3. The angle ACD = 90 ° ADC = 29 ° 44 ' ; but because AEC is an isosceles triangle , the angle CAE = ACE = 29 ° 44 ' the angle required .
The half of CD is = '26 .49 perches = CE = the distance of the well from each corner . . 3. The angle ACD = 90 ° ADC = 29 ° 44 ' ; but because AEC is an isosceles triangle , the angle CAE = ACE = 29 ° 44 ' the angle required .
Página 81
... which is 4 poles or 66 feet in length , and is divided into 100 equal parts or links ; consequently the length of each link is 7.92 inches : also 1 square chain is equal to 16 square perches , and 10 square chains make an acre .
... which is 4 poles or 66 feet in length , and is divided into 100 equal parts or links ; consequently the length of each link is 7.92 inches : also 1 square chain is equal to 16 square perches , and 10 square chains make an acre .
Página 82
Thus in 17 two - pole chains and 42 links , there are 8 four - pole chains and 92 links , or 8.92 four - pole chains . To reduce two - pole chains and links , to perches and decimals of a perch . RULE . a Multiply the links by 4 and the ...
Thus in 17 two - pole chains and 42 links , there are 8 four - pole chains and 92 links , or 8.92 four - pole chains . To reduce two - pole chains and links , to perches and decimals of a perch . RULE . a Multiply the links by 4 and the ...
Página 83
If there be decimals in the quotient , multiply by 4 and by 40 to i obtain the roods and perches . EXAMPLE . In 523.2791 square chains , how many acres ? 10 ) 523.2791 52.32791 4 1.31164 40 12.46560 Ans . 52A . IR . 12P .
If there be decimals in the quotient , multiply by 4 and by 40 to i obtain the roods and perches . EXAMPLE . In 523.2791 square chains , how many acres ? 10 ) 523.2791 52.32791 4 1.31164 40 12.46560 Ans . 52A . IR . 12P .
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Términos y frases comunes
ABCD according acres adjacent angle base bearing bearing and distance Calculation called centre circle Co-secant Co-sine Co-tang column Construction contained corresponding Courses decimal Deg Dist DEMONSTRATION describe difference distance divide division draw east equal EXAMPLES feet figures find the area given given angle given area given side greater half hand height hypothenuse join latitude and departure length less logarithm measured meeting meridian distance Note off-sets opposite parallel perches perpendicular preceding PROBLEM quotient radius ratio rectangle remainder Required the area right angle right line root RULE running scale Secant side side AC sine square station subtract survey taken Tang Tangent triangle ABC twice