Plane and solid geometry, by G.E. Webster and A. Gardiner |
Other editions - View all
Plane and Solid Geometry, by G.E. Webster and A. Gardiner George E. Webster,Alfonzo Gardiner No preview available - 2015 |
Plane and Solid Geometry, by G.E. Webster and A. Gardiner George E. Webster,Alfonzo Gardiner No preview available - 2018 |
Common terms and phrases
A B parallel altitude angle of 30 apex base centre co-ordinate planes cone Copy-Books describe arc cutting describe circle describe semicircle determine the plan dihedral angle distance divide division draw a b draw lines parallel Draw the plan drop a perpendicular English Grammar equilateral triangle erect a perpendicular F'cap 8vo Geometry given angle given line A B given point given triangle hexagonal hexagonal pyramid horizontal plane horizontal trace inches inclined at 50 Join a b last problem lines drawn mean proportional nonagon number of equal octahedron parallel to X Y parallelogram pentagon pentagonal pyramid perpendicular to X Y plan and elevation plane inclined planes of projection Plate point of intersection Produce a b pyramid regular polygon required line revolved rhombus right angles right-angled triangle sides straight line student tangent tetrahedron tion triangle A B C true length vertical plane vertical trace
Popular passages
Page 22 - ... similar rectilineal figures are to one another in the duplicate ratio of their homologous sides.
Page 44 - 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.
Page 7 - 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.
Page 67 - EXERCISES. 1. Draw a line inclined at 30° and making an angle of 45° with the vertical plane ; and a plane inclined at 50° and making an angle of 65° with the vertical plane, to contain the line. 2. The horizontal trace of a plane makes an angle of 30° with the ground line ; draw the vertical trace on the supposition that the two traces really contain an angle of 65° ; thence determine the angles which this plane makes with both planes of projection.
Page 8 - A rhombus, is that which has all its sides equal, but its angles are not right angles.
Page 44 - A parallelepiped is a solid figure contained by six quadrilateral figures, whereof every opposite two are parallel.