The eccentricity of a hyperbola is ___ than one.

When a cone is cut by planes at different angles, the intersection curves obtained are called ___.

An area is represented by ___.

The planes which are inclined to the H.P. but perpendicular to the V.P. are called ___.

Three types of pictorial sketches are isometric, oblique, and ___ sketches.

The application of development is generally used in ___ metal work.

To facilitate extension, where should entries in the table begin?

When a line is parallel to both the H.P. and V.P., it has ___.