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 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 12.
Σελίδα 28
... semicircles . 36. A quadrant is one quarter of a circle , as ACB , Fig . 17 . Note . The fourth part of the circumference of a cir- cle , is also called a quadrant . 37. A segment of a circle is the figure contained by a right line ...
... semicircles . 36. A quadrant is one quarter of a circle , as ACB , Fig . 17 . Note . The fourth part of the circumference of a cir- cle , is also called a quadrant . 37. A segment of a circle is the figure contained by a right line ...
Σελίδα 36
... semicircle with any convenient radius CB ; from the centre C draw CD perpendicular to AB and produce it to F ; draw BE parallel to CF and join AD . Divide the arc AD into nine equal parts as A , 10 ; 10 , 20 ; & c . and with one foot of ...
... semicircle with any convenient radius CB ; from the centre C draw CD perpendicular to AB and produce it to F ; draw BE parallel to CF and join AD . Divide the arc AD into nine equal parts as A , 10 ; 10 , 20 ; & c . and with one foot of ...
Σελίδα 43
... semicircle is a right angle ; thus the angle ECF , Fig . 45 , is a right angle . 13. This mark ' placed on the sides or in the angles ́of a triangle , indicates that they are given ; and this mark placed in the same way , indicates that ...
... semicircle is a right angle ; thus the angle ECF , Fig . 45 , is a right angle . 13. This mark ' placed on the sides or in the angles ́of a triangle , indicates that they are given ; and this mark placed in the same way , indicates that ...
Σελίδα 52
... semicircle , is a right angle , EG is perpendicular to CF , and therefore CF being radius , EC , CG are the tangents of the angles EFC , CFG ; it is also evident that EB is the sum of the sides BA , AC , and that BF is their difference ...
... semicircle , is a right angle , EG is perpendicular to CF , and therefore CF being radius , EC , CG are the tangents of the angles EFC , CFG ; it is also evident that EB is the sum of the sides BA , AC , and that BF is their difference ...
Σελίδα 71
... semicircle , is a right angle : therefore in the right angled triangle DAC , we have the angle ADC ABC 60 ° 16 ' , and the side AC to find CD 52.98 perches . The half of CD is = 26.49 the distance of the well from each cor- perches ner ...
... semicircle , is a right angle : therefore in the right angled triangle DAC , we have the angle ADC ABC 60 ° 16 ' , and the side AC to find CD 52.98 perches . The half of CD is = 26.49 the distance of the well from each cor- perches ner ...
Άλλες εκδόσεις - Προβολή όλων
A Treatise on Surveying: Containing the Theory and Practice: To Which Is ... John Gummere Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Δημοφιλή αποσπάσματα
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 26 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 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.
Σελίδα 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.