This is formed where three or more surfaces intersect:

The building construction industry relies on sets of ________ drawings to construct homes and commercial buildings.

Name the drawing instruments and aids.</p>

The values of angles are _________ on one side and _________ on other side for oblique view.</p>

These are vertical distances above a common datum, reference plane or point:

This is a flat or rounded tab protruding from a surface, usually to provide a method for attachment:

The ________ is a standard element of a section view in a technical drawing.

If designs require changes, they should be documented with: