The New Practical Builder and Workman's Companion, Containing a Full Display and Elucidation of the Most Recent and Skilful Methods Pursued by Architects and Artificers ... Including, Also, New Treatises on Geometry ..., a Summary of the Art of Building ..., an Extensive Glossary of the Technical Terms ..., and The Theory and Practice of the Five Orders, as Employed in Decorative ArchitectureThomas Kelly, 1823 - 596 sider |
Inni boken
Resultat 1-5 av 38
Side 11
... curve , or crooked line ; the latter may be formed either by regular inflexions , or por- tions of straight lines , or both . " 4. A SUPERFICIES , or SURFACE , is that which is considered as having length and breadth without depth ...
... curve , or crooked line ; the latter may be formed either by regular inflexions , or por- tions of straight lines , or both . " 4. A SUPERFICIES , or SURFACE , is that which is considered as having length and breadth without depth ...
Side 70
... curve ; with the difference of ED and EA , as a radius , from any point ƒ , in EB , describe an arc , cutting EC in h . Draw fh , and produce it to g , and make hg equal to EB or ED ; then g will be a point in the curve , as required ...
... curve ; with the difference of ED and EA , as a radius , from any point ƒ , in EB , describe an arc , cutting EC in h . Draw fh , and produce it to g , and make hg equal to EB or ED ; then g will be a point in the curve , as required ...
Side 71
... curve , and we shall have the fourth part , or quarter , of the whole curve . In the same manner the other quarter DC may be found . And , by taking the point D , instead of B , and by describing the rectangle upon AC , so that the ...
... curve , and we shall have the fourth part , or quarter , of the whole curve . In the same manner the other quarter DC may be found . And , by taking the point D , instead of B , and by describing the rectangle upon AC , so that the ...
Side 72
... curve of the ellipse as required . PROBLEM 33 . 210. A rectangle being given , to describe an ellipse , so that the two axes may have the same proportion as the sides of the rectangle ( fig . 3 , pl . IV ) . Let ABCD be the given ...
... curve of the ellipse as required . PROBLEM 33 . 210. A rectangle being given , to describe an ellipse , so that the two axes may have the same proportion as the sides of the rectangle ( fig . 3 , pl . IV ) . Let ABCD be the given ...
Side 73
... curve is at D the flatter it will be towards A and C. The point B being thus fixed , divide AE into any number of ... curve , which will be the half of an hyperbola , or an hyperbolic curve . PROBLEM 35 . 212. To describe a parabola upon ...
... curve is at D the flatter it will be towards A and C. The point B being thus fixed , divide AE into any number of ... curve , which will be the half of an hyperbola , or an hyperbolic curve . PROBLEM 35 . 212. To describe a parabola upon ...
Vanlige uttrykk og setninger
ABCD abscissa adjacent angles altitude angle ABD annular vault axes axis major base bisect called centre chord circle circumference cone conic section conjugate contains COROLLARY 1.-Hence cutting cylinder describe a semi-circle describe an arc diameter distance divide draw a curve draw lines draw the lines edge ellipse Engraved equal angles equal to DF equation equiangular figure GEOMETRY given straight line greater groin homologous sides hyperbola intersection join joist latus rectum less Let ABC line of section meet multiplying Nicholson opposite sides ordinate parallel to BC parallelogram perpendicular PLATE points of section polygon PROBLEM produced proportionals quantity radius rectangle regular polygon ribs right angles roof segment similar triangles square straight edge subtracted surface Symns tangent THEOREM timber transverse axis triangle ABC vault vertex wherefore
Populære avsnitt
Side 27 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Side 20 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. D c A' D' Hyp. In triangles ABC and A'B'C', ZA = ZA'. To prove AABC = ABxAC. A A'B'C' A'B'xA'C' Proof. Draw the altitudes BD and B'D'.
Side 51 - The area of a parallelogram is equal to the product of its base and its height: A = bx h.
Side 15 - AXIOMS. 1. 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.
Side 15 - LET it be granted that a straight line may be drawn from any one point to any other point.
Side 28 - ... angles of another, the third angles will also be equal, and the two triangles will be mutually equiangular. Cor.
Side 81 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Side 80 - The sine of an arc is a straight line drawn from one extremity of the arc perpendicular to the radius passing through the other extremity. The tangent of an arc is a straight line touching the arc at one extremity, and limited by the radius produced through the other extremity.
Side 28 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
Side 22 - The perpendicular is the shortest line that can be drawn from a point to a straight line.