A Manual of Surveying for India, Detailing the Mode of Operations on the Revenue Surveys in Bengal and the North-western ProvincesW. Thacker, 1851 - 718 páginas |
Dentro del libro
Resultados 1-5 de 88
Página 7
... described . 4. It is also required , that the equality of lines and angles to others given , be granted as possible : That it is possible for one right line to be perpendicular to another , at a given point or distance ; and that every ...
... described . 4. It is also required , that the equality of lines and angles to others given , be granted as possible : That it is possible for one right line to be perpendicular to another , at a given point or distance ; and that every ...
Página 19
... described by that radius ; and con- sequently the greater any particular arc of that circle is , so the chord , sine , tangent , & c . of that arc will be also greater ; therefore in general , the chord , sine , tangent , & c . of any ...
... described by that radius ; and con- sequently the greater any particular arc of that circle is , so the chord , sine , tangent , & c . of that arc will be also greater ; therefore in general , the chord , sine , tangent , & c . of any ...
Página 23
... described by the radius CB : HB an arc of it , and DH its complement ; HL or FC the sine ; FH or CL its co - sine ; BK its tangent ; DI its co- tangent ; and CK its secant ; and CI its co - secant . 1. The co - sine of an arc , is to ...
... described by the radius CB : HB an arc of it , and DH its complement ; HL or FC the sine ; FH or CL its co - sine ; BK its tangent ; DI its co- tangent ; and CK its secant ; and CI its co - secant . 1. The co - sine of an arc , is to ...
Página 29
... be kept on the point B , and arcs successively described with the other from each of the 90 divisions on the arc to meet BA , those arcs will divide it into a line of chords . E PROB . X. To find the number of degrees contained 29.
... be kept on the point B , and arcs successively described with the other from each of the 90 divisions on the arc to meet BA , those arcs will divide it into a line of chords . E PROB . X. To find the number of degrees contained 29.
Página 79
... described , ) the angle DCB equal to 30 ° , the difference be- tween 90 ° and 120 ° ; then on centre D , and radius DC , describe the segment CaB in every part of which , the two points C and B will subtend an angle of 120 degrees . If ...
... described , ) the angle DCB equal to 30 ° , the difference be- tween 90 ° and 120 ° ; then on centre D , and radius DC , describe the segment CaB in every part of which , the two points C and B will subtend an angle of 120 degrees . If ...
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Otras ediciones - Ver todas
A Manual of Surveying for India: Detailing the Mode of Operations on the ... R. Smyth Sin vista previa disponible - 2018 |
A Manual of Surveying for India: Detailing the Mode of Operations on the ... R. Smyth Sin vista previa disponible - 2017 |
A Manual of Surveying for India, Detailing the Mode of Operations on the ... Ralph Smyth Sin vista previa disponible - 2015 |
Términos y frases comunes
accuracy adjustment altitude angular axis azimuth base Beam Compass bisect boundary centre chord circle collimation compasses computation construction correct deducted degrees describe difference distance divided Draw the line drawn edge error feet Field-book figure fixed given line ground half height horizontal inches instrument intersection latitude length limb Logarithm longitude main circuit mark measure meridian method natural number object observed angle obtain offsets opposite parallax parallel parallelogram perpendicular plane plate polygon position PROB produced protractor radius Ray Trace reading rhombus right angles right line scale of equal screw segment sextant side Sine square station line straight line subtract Survey Surveyor taken talc tangent telescope Theo Theodolite triangle ABC Trigono Trigonometrical Trigonometrical Survey tube vernier vernier scale vertical village wires zero وو
Pasajes populares
Página 7 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals the wholes are equal. 3. If equals be taken from equals the remainders are equal. 4. If equals be added to unequals the wholes are unequal. 5. If equals be taken from unequals the remainders are unequal. 6. Things which are double of the same are equal to one another.
Página 2 - But when a straight line standing upon another straight line makes the adjacent angles equal to one another, each of the angles is a right angle : (Ю.
Página 14 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Página 12 - F, which is the common vertex of the triangles: that is », together with four right angles. Therefore all the angles of the figure, together with four right angles are equal to twice as many right angles as the figure has sides.
Página 240 - Upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of the base equal to one another, and likewise those which are terminated in the other extremity.
Página 2 - When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at the vertex of the angle, that is, at the point in which the straight lines that contain the angle meet one another, is put between the other two letters, and one of these two...
Página 4 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 273 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Página 149 - ... to make the objects appear on the other wire ; if the contact still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down piece, the collar into which the telescope screws. This adjustment is not very liable to be deranged.
Página 5 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees...