A graduated course of problems in practical plane and solid geometry |
Dentro del libro
Resultados 1-5 de 22
Página 189
... projector of that point , e . g . , AA ' , AA are the projectors of the given point A. NOTE 3. - From this it is evident that , PRACTICAL SOLID GEOMETRY . 189.
... projector of that point , e . g . , AA ' , AA are the projectors of the given point A. NOTE 3. - From this it is evident that , PRACTICAL SOLID GEOMETRY . 189.
Página 190
... projectors of the point . 9. Secondly , the projections of a line are obtained thus— a n m B C B b Let abay be the horizontal plane of projection , and cdyx the ver- tical , also let AB be the position of a line in space . It is ...
... projectors of the point . 9. Secondly , the projections of a line are obtained thus— a n m B C B b Let abay be the horizontal plane of projection , and cdyx the ver- tical , also let AB be the position of a line in space . It is ...
Página 198
... projector from C ' . Then from C as centre , and radius C'A ' or C'B ' describe a circle which will be the required plan . Problem 7 . To find the elevation of a line , its plan being given . Let AB be the plan of the given line . Draw ...
... projector from C ' . Then from C as centre , and radius C'A ' or C'B ' describe a circle which will be the required plan . Problem 7 . To find the elevation of a line , its plan being given . Let AB be the plan of the given line . Draw ...
Página 201
... projectors at right angles to xy ; and at the points where these meet the ground line , we have the elevations of the four corners of the square . Continue the projectors through A ' , D ' , PRACTICAL SOLID GEOMETRY . 201.
... projectors at right angles to xy ; and at the points where these meet the ground line , we have the elevations of the four corners of the square . Continue the projectors through A ' , D ' , PRACTICAL SOLID GEOMETRY . 201.
Página 202
James Martin (of the Wedgwood inst, Burslem.) Continue the projectors through A ' , D ' , & c . , making A'a ' , B'b ' , C'e , & c . , equal in height to the edge of the given cube . 18 α ď b B C ' C ' y A line then drawn through the ...
James Martin (of the Wedgwood inst, Burslem.) Continue the projectors through A ' , D ' , & c . , making A'a ' , B'b ' , C'e , & c . , equal in height to the edge of the given cube . 18 α ď b B C ' C ' y A line then drawn through the ...
Términos y frases comunes
altitude angles to xy Atlas axis base BC Pr Bisect the angle bound in cloth circumference cone construct a triangle cube curve cylinder decagon describe a circle describe an arc describe the arc diameter BC distance divide draw a line draw a tangent draw lines edge ellipse equal circles equal in area equilateral triangle given circle given line given point given square ABCD given straight line given triangle ABC heptagon horizontal plane hyperbola inclined inscribe intersection isosceles triangle Join line BC line CD line of bisection lines parallel Maps mean proportional meeting number of equal octahedron parallel to xy parallelogram pentagon perpendicular to xy Philips plan and elevation PLANE GEOMETRY plane of projection point F points of division prism Problem projectors pyramid radii radius rectangle rectilineal figure regular polygon represent required circle rhombus right angles semicircle SOLID GEOMETRY square pyramid trapezium vertical plane
Pasajes populares
Página 295 - Philips' Preparatory Atlas, Containing Sixteen Maps, full colored. Crown quarto, in neat cover, 6d. Philips Preparatory Outline Atlas. Sixteen Maps. Crown quarto, printed on fine cream-wove paper, in neat cover, 6d. Philips Preparatory Atlas of Blank Projections. Sixteen Maps. Crown quarto, printed on fine cream-wove paper, in neat cover, 6d. Philips Elementary Atlas for Young Learners.
Página 294 - Young Student's Atlas, Comprising Thirty-six Maps of the Principal Countries of the World, printed in colors. Edited by W. Hughes, FRGS Imperial 41.0., bound in cloth, 33. 6d. Philips Atlas for Beginners, Comprising Thirty-two Maps of the Principal Countries of the World, constructed from the best authorities, and engraved in the best style. New and enlarged edition, with a valuable Consulting Index, on a new plan.
Página 193 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed. If the fixed side be equal to the other side containing the right angle, the cone is called a right-angled cone ; if it be less than the other side, an obtuse-angled ; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves.
Página 123 - A straight line is said to be cut in extreme and mean ratio, when the whole is to the greater segment as the greater segment is to the less.