What is the result of applying a dimension to a sketch entity in SolidWorks?

Applying a dimension to a sketch entity in SolidWorks serves to define the size or position of that entity. When you dimension a line, circle, or other sketch feature, you provide a specific measurement that dictates how long the line is, how wide the circle is, or where the entity is located in relation to other parts of the sketch.

This process is essential for establishing the geometric relationships within the sketch. By defining these dimensions, you gain control over the design, ensuring that parts are built to the correct specifications and that the geometry behaves predictably when modified. SolidWorks relies heavily on dimensions to manage the sketches, as they are crucial for creating fully defined sketches, which is a prerequisite for moving on to the feature creation stage in modeling.

The other options do not accurately reflect the function of applying a dimension. For instance, dimensions do not remove entities from the sketch or create new sketches, nor do they directly generate features; instead, they enable the creation of features by ensuring that the sketch is properly defined.