How can construction lines be created in a sketch within Fusion 360?

Construction lines in Fusion 360 serve as references and aids for sketching, allowing for precise geometry without being included in the final model. The correct approach to create construction lines involves selecting the "Construction" option when drawing lines. This option designates the line as a construction line, which has distinct visual properties (usually dashed or lighter in color) that indicate its purpose within the sketch environment.

This method effectively separates construction geometry from the actual design geometry, helping users to organize their sketches more clearly. When selected, the construction line can facilitate other sketch features, such as dimensions and constraints, without impacting the physical body created during the modeling process.

While drawing lines without any specifications is a method for creating regular sketch lines, it does not designate them as construction. Additionally, there is no separate tool specifically for guidelines; the construction line function is integrated into the existing line tool workflow. Finally, pressing the "Shift" key while drawing typically constrains the drawing to specific angles or directions rather than toggling construction line status.