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 & Richardson, 1814 - 346 Seiten |
Im Buch
Ergebnisse 1-5 von 12
Seite 26
... ADC and BDE are called right angles , and the line CD is said to be perpendicular to AB , Fig . 4 . 10. An acute angle is that which is less than a right ... triangle has one obtuse angle right angle is called the hypothenuse . 26 GEOMETRY .
... ADC and BDE are called right angles , and the line CD is said to be perpendicular to AB , Fig . 4 . 10. An acute angle is that which is less than a right ... triangle has one obtuse angle right angle is called the hypothenuse . 26 GEOMETRY .
Seite 42
... ADC + CDE + EDB = two right angles , or 180 ° . Fig . 35 . 2. Since the angles thus formed at the point D , on the ... angle . 6. If one angle of a triangle be subtracted from 180 ° , the remainder will be the sum of the other two angles ...
... ADC + CDE + EDB = two right angles , or 180 ° . Fig . 35 . 2. Since the angles thus formed at the point D , on the ... angle . 6. If one angle of a triangle be subtracted from 180 ° , the remainder will be the sum of the other two angles ...
Seite 57
... ADC 307.3 2.48756 90 ° 10.00000 12.48756 To sine of ACD 37 ° 21 ′ 9.92527 90 00 Angle A As BC 52 39 * 230 2.36173 Is to BD So is sine of BDC 118.7 2.07445 90 ° 10.00000 12.07445 To sine of BCD 31 ° 49.71272 90 0 Angle B 58 56 From 180 ...
... ADC 307.3 2.48756 90 ° 10.00000 12.48756 To sine of ACD 37 ° 21 ′ 9.92527 90 00 Angle A As BC 52 39 * 230 2.36173 Is to BD So is sine of BDC 118.7 2.07445 90 ° 10.00000 12.07445 To sine of BCD 31 ° 49.71272 90 0 Angle B 58 56 From 180 ...
Seite 59
... angle C. 3. But if the hypothenuse be made radius ; then each leg will ... angles and one side of a right - angled triangle , being given to find the other sides ... ADC , ABC , AD : DE :: AB : BC ; that is , the tabular radius : tabular ...
... angle C. 3. But if the hypothenuse be made radius ; then each leg will ... angles and one side of a right - angled triangle , being given to find the other sides ... ADC , ABC , AD : DE :: AB : BC ; that is , the tabular radius : tabular ...
Seite 68
... triangle ACD , are given the angle ACD → 95 ° 20 ′ , ADC = 53 ° 30 ′ , and the side CD AC = 465.98 . = 300 , to find 300 , to find BC 2. In the triangle BCD , are given the angle BCD 58 ° 20 ′ , BDC = 98 ° 45 ' , and side CD = 761.47 ...
... triangle ACD , are given the angle ACD → 95 ° 20 ′ , ADC = 53 ° 30 ′ , and the side CD AC = 465.98 . = 300 , to find 300 , to find BC 2. In the triangle BCD , are given the angle BCD 58 ° 20 ′ , BDC = 98 ° 45 ' , and side CD = 761.47 ...
Andere Ausgaben - Alle anzeigen
A Treatise on Surveying: Containing the Theory and Practice: To Which Is ... John Gummere Keine Leseprobe verfügbar - 2016 |
Beliebte Passagen
Seite 2 - An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned." And also to the act, entitled " An Act supplementary to an Act, entitled, " An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and...
Seite 97 - To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately.
Seite 43 - The angle at the centre of a circle is double of the angle at the circumference upon the same base, that is, upon the same part of the circumference.
Seite 34 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Seite 2 - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Seite 85 - A maypole, whose top was broken off by a blast of wind, struck the ground at 15 feet distance from the foot of the pole: what was the height of the whole maypole, supposing the broken piece to measure 39 feet in length ? Ans.
Seite 25 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Seite 26 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Seite 91 - PROBLEM I. To find the area of a parallelogram; whether it be a square, a rectangle, a rhombus, or a rhomboides. RULE.* Multiply the length by the perpendicular height, and the product will be the area.
Seite 96 - If one side and the angles are given ; then As the product of radius and the sine of the angle opposite the given side, To the product of the sines of the two other angles ; So is the square of the given side, To twice the area of the triangle. If PC (Fig.