An area is represented by ___.

A surface of an object appears in its true shape when it is ___ to the plane of projection.

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

An invisible line should intersect a visible line with ___.

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

Diagonal scales are used for measurement of ___.

Every object is built up of a number of ___.

A point lying in the H.P. has its top view ___ the XY line. Its front view will be ___ the XY line.