To construct the intersection of a right cone by a plane perpendicular to one of the planes of projection.
To construct the section made, on the surface of a right and vertical cylinder, by a plane perpendicular to one of the planes of projection.
Through a given point to pass a plane perpendicular to a given right line (rectangular co-ordinates).
The ends of the prism are perpendicular to its length; the section carried through it is in a plane perpendicular to the principal axis of the crystal.
The prism is then cut in two in a plane perpendicular to the new end surfaces, the section being carried obliquely from one obtuse corner of the prism to the other, in the direction of its length.
We take the plane of the base as the horizontal plane and the vertical plane perpendicular to the plane of the section.
We have considered, correctly speaking, only the section of the undulation made by a plane perpendicular to the margin of the screen represented by A.
We may therefore consider the intensity of the general result as determined by the calculation already mentioned, as belonging to the section of the undulation made by a plane perpendicular to the margin of the screen.
Again, since the shortest distance between any two conjugate lines cuts the central axis at right angles, the orthogonal projections of two conjugate lines on a plane perpendicular to the central axis will be parallel (fig.
Hence any three-dimensional system can be reduced to a single force R acting in a certain line, together with a couple G in a plane perpendicular to the line.
If we project both polyhedra orthogonally on a plane perpendicular to the axis of the paraboloid, we obtain two figures which are reciprocal, except that corresponding lines are orthogonal instead of parallel.
To define the moment of a force about an axis HK, we project the force orthogonally on a plane perpendicular to HK and take the moment of the projection about the intersection of HK with the plane (see S 4).
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "plane perpendicular" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
