The extension lines should not extend about ___ mm beyond the dimension line.

The eccentricity of a hyperbola is ___ than one.

A plane may be located by ___ parallel lines.

Dimension lines should not ___ each other.

The direction of the alphabet in upright Gothic lettering is ___.

Cavalier projection is an example of ___ projection.

A circle in the isometric view appears as ___.

For ordinary sectioning, the spacing varies between ___.