When one solid penetrates the other it is known as ___ of solids.

Two types of dimension required on a drawing are ___ and ___.

When a line is perpendicular to one of the planes, it is ___ to the other plane.

The section lines are generally drawn to the horizontal lines at ___.

The isometric length is about ___ of the true length.

The sectional views are used to visualize the ___ details of the object.

In making a full section, ___ of the object is imagined to be cut off.

Splines are used to draw _____: