Hva folk mener - Skriv en omtale
Vi har ikke funnet noen omtaler på noen av de vanlige stedene.
Andre utgaver - Vis alle
Practical Surveying: A Text-book for Students Preparing for Examinations Or ...
George William Usill
Uten tilgangsbegrensning - 1889
accuracy accurately adjusted back-sight base boundaries called centre chain collimation column commencement consequently cosec cosine crossing curve desirable determined difference direction distance divided draw drawn equal exactly explain fall feet fence field figures fixed fore sights four give given greater ground half hedge held horizontal illustration inches instrument intermediate intersection length less logarithm lower mark means measured method move necessary object observed offsets operations opposite parallel plate plotted position possible practical radius ratio reading reference represent result right angles rise road scale screw seen shown side simple sine square staff station streets survey surveyor taken tangent telescope theodolite triangle upper various vernier vertical whilst
Side 86 - If two triangles have two sides of the one equal to two sides of the...
Side 85 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 61 - When you have proved that the three angles of every triangle are equal to two right angles...
Side 85 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16.
Side 92 - In any right-angled triangle, the square which is described on the side subtending the right angle is equal to the sum of the squares described on the sides which contain the right angle.
Side 116 - In any plane triangle, as the sum of the sides about the vertical angle is to their difference, so is the tangent of half the sum of the angles at the base to the tangent of half their difference.
Side 85 - 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.
Side 127 - As the sum of the two given sides Is to their difference, So is the tangent of half the sum of their opposite angles To the tangent of half the difference of the same angles.