The three forms of axonometric projection are diametric, trimetric, and ___ projection.

Lettering is done in ___ letters.

An object having ___ dimension is called solid.

How are dimension lines, hatching, and projection lines drawn?

A surface is represented by ___.

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

A solid which is bounded by ___ is called polyhedral.

A solid having four equal equilateral triangular faces is called a ___.