Answer:
Using the three views: front view, side view and top view.
Step-by-step explanation:
An ortographic drawing refers to a way of representing a three dimensional object in two dimensions which allows to show exactly what is the structure of that object. This drawing has three views (front view, side view and top view) and the best way to make sure there are no missing lines is by reviewing them to be certain that all of them match, and like that, you can guarantee that the orthographic drawing is complete.