What are the three most commonly used views in drawing?

The three most commonly used views in technical drawing are the front view, the plan view, and the side view.

The front view provides a clear and direct representation of the object’s height and width, showcasing important features as seen from the front. This view is essential for understanding the object's overall profile and is usually the primary view from which other views are derived.

The plan view, also known as the top view, presents the object as seen from above, revealing its footprint and layout concerning width and depth. This view is crucial for determining how the object occupies space and understanding its positioning relative to other components or structures.

The side view, often representing either the left or right side of the object, helps visualize depth and height details that may not be apparent in the front or plan views. It provides additional insight into the design, including details that may be significant for construction or assembly.

Together, these three views—front, plan, and side—offer a comprehensive understanding of the shape, dimensions, and relationships of the object in space. The other combinations mentioned do not include this essential trio, which is standard in most engineering and architectural drawings.