Practical Geometry & Graphics: A Text-book for Students in Technical and Trade Schools, Evening Classes, and for Engineers, Artisans, Draughtsmen, Architects, Builders, Surveyors, &cB. T. Batsford, 1912 - 621 σελίδες |
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Αποτελέσματα 1 - 5 από τα 51.
Σελίδα 74
... polygon . Particular names are given to polygons according to the number of their sides : a pentagon has 5 sides , a hexagon 6 , A H B D E FIG . 72 . F a heptagon 7 , an octagon 8 , a nonagon 9 , a decagon 10 , etc. The sum of the sides ...
... polygon . Particular names are given to polygons according to the number of their sides : a pentagon has 5 sides , a hexagon 6 , A H B D E FIG . 72 . F a heptagon 7 , an octagon 8 , a nonagon 9 , a decagon 10 , etc. The sum of the sides ...
Σελίδα 75
... Oa parallel to the side CA. Then = B ; angle aOb = Φ . angle boc = a ; angle coa And since the sum of the angles bОc , cOa , aOb is 360 ° , .. a + ß + $ = 360 ° . Now draw any convex polygon , as DEFGH , Fig PLANE RECTILINEAR FIGURES . 75.
... Oa parallel to the side CA. Then = B ; angle aOb = Φ . angle boc = a ; angle coa And since the sum of the angles bОc , cOa , aOb is 360 ° , .. a + ß + $ = 360 ° . Now draw any convex polygon , as DEFGH , Fig PLANE RECTILINEAR FIGURES . 75.
Σελίδα 76
... polygon , as DEFGH , Fig . 75 . Extend each side as above described and denote the exterior angles by a , ẞ , y , 0 , 4. From any point O , draw Oe parallel to the side DE ; draw of parallel to the side EF ; and Od parallel to the side ...
... polygon , as DEFGH , Fig . 75 . Extend each side as above described and denote the exterior angles by a , ẞ , y , 0 , 4. From any point O , draw Oe parallel to the side DE ; draw of parallel to the side EF ; and Od parallel to the side ...
Σελίδα 77
... polygons DEFGH , defgh , which we know are alike in some respects , and we wish to compare them , we call the points which are denoted by the same letters corresponding points . Lines which join two points in one figure and the ...
... polygons DEFGH , defgh , which we know are alike in some respects , and we wish to compare them , we call the points which are denoted by the same letters corresponding points . Lines which join two points in one figure and the ...
Σελίδα 78
... polygons DEFGH , defgh , are examples of similar figures . each pair of figures , corresponding angles are equal , and , in the triangles , linear dimensions are in the ratio . In the polygons , the ratio is 2. Test this statement by LL ...
... polygons DEFGH , defgh , are examples of similar figures . each pair of figures , corresponding angles are equal , and , in the triangles , linear dimensions are in the ratio . In the polygons , the ratio is 2. Test this statement by LL ...
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Practical Geometry & Graphics: A Text-Book for Students in Technical and ... Edward L Bates,Frederick Charlesworth Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Practical Geometry and Graphics: A Text-Book for Students in Technical and ... Edward L. Bates Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Practical Geometry and Graphics: A Text-Book for Students in Technical and ... Edward L. Bates Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD axes axis bisector bisects called centimetres chord circle centre circular arc circumference cone construction corresponding crank curve cylinder describe a circle describe an arc determine diagonal diagram diameter dihedral angle direction distance divided Draw drawn edge ellipse equal equation figure fixed point force frustrum geometrical given angle given line given point graph graphically height hence horizontal hyperbola hypotenuse inch intersect Join joint latus rectum load locus magnitude measure meeting miles per hour obtain parabola parallel parallelogram perpendicular plan and elevation plane VTH planes of projection Plot polygon position prism Problem projector protractor Rabat radians radius ratio rectangle represent rhombus rotation scale semi-major axis set-square side sphere square straight line surface T-square tangent trace triangle ABC true shape vector velocity vertical plane
Δημοφιλή αποσπάσματα
Σελίδα 621 - Mr. Mitchell's two books form unquestionably the best guide to all the mechanical part of architecture which any student can obtain at the present moment. In fact, so far as it is possible for any one to compile a satisfactory treatise on building construction, Mr. Mitchell has performed the task as well as it can be performed.
Σελίδα 1 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Σελίδα 61 - Radian is the angle subtended, at the centre of a circle, by an arc equal in length to the radius...
Σελίδα 605 - Gallon = -1604 cubic foot = 10 Ib. of water at 62° F. 1 Knot = 6080 feet per hour. Weight of 1 Ib. in London = 445,000 dynes. One pound avoirdupois = 7000 grains = 453-6 grammes. 1 Cubic foot of water weighs 62'3 Ib. 1 Cubic foot of air at 0° C. and 1 atmosphere, weighs -0807 Ib. 1 Cubic foot of Hydrogen at 0° C. and 1 atmosphere, weighs '00559 Ib. 1 Foot-pound =1-3562 x 10
Σελίδα 621 - BUILDING CONSTRUCTION AND DRAWING. A Text-book on the Principles and Details of Modern Construction, for the use of Students and Practical Men. By CHARLES F. MITCHELL, Lecturer on Building Construction at the Polytechnic Institute, London, assisted by GEORGE A. MITCHELL.
Σελίδα 345 - If any number of forces acting at a point can be represented in magnitude and direction by the sides of a POLYGON taken in order, they are in equilibrium.
Σελίδα 2 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.