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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9 : in which the side AC opposite to the + 19. An obtuse angled triangle has one obtuse angle right angle is called the hypothenuse . GEOMETRY . Logarithms, Page 9 Geometrical Definitions,
9 : in which the side AC opposite to the + 19. An obtuse angled triangle has one obtuse angle right angle is called the hypothenuse . GEOMETRY . Logarithms, Page 9 Geometrical Definitions,
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Any quadrilateral , whose opposite sides are parallel , is called a parallelogram , as D , Fig . 11 . 24. A parallelogram , whose angles are all right angles , is called a rectangle , as E , Fig . 12 . 25. A parallelogram whose sides ...
Any quadrilateral , whose opposite sides are parallel , is called a parallelogram , as D , Fig . 11 . 24. A parallelogram , whose angles are all right angles , is called a rectangle , as E , Fig . 12 . 25. A parallelogram whose sides ...
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The line of sines , marked Sin . is numbered from the left hand of the scale towards the right , 1 , 2 , 3 , 4 , & c . to 10 , then 20 , 30 , 40 , & c . to 90 , where it terminates , just opposite 10 on the line of numbers . Tangents .
The line of sines , marked Sin . is numbered from the left hand of the scale towards the right , 1 , 2 , 3 , 4 , & c . to 10 , then 20 , 30 , 40 , & c . to 90 , where it terminates , just opposite 10 on the line of numbers . Tangents .
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If two right lines cut one another , the opposite angles will be equal : thus AEC = BED and AED = CEB . Fig . 36 . 4. The sum of the three angles of a plane triangle is equal to two right angles , or 180 ° . 5.
If two right lines cut one another , the opposite angles will be equal : thus AEC = BED and AED = CEB . Fig . 36 . 4. The sum of the three angles of a plane triangle is equal to two right angles , or 180 ° . 5.
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posite angles : thus the external angle CBD , of the triangle ABC , is equal to the sum of the internal and opposite angles A and C. Fig . 37 . a 10. The angle at the centre of a circle is double of the angle at the circumference ...
posite angles : thus the external angle CBD , of the triangle ABC , is equal to the sum of the internal and opposite angles A and C. Fig . 37 . a 10. The angle at the centre of a circle is double of the angle at the circumference ...
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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