How can angled surfaces also be dimensioned in engineering drawings?

Angled surfaces can effectively be dimensioned on engineering drawings by indicating one distance and the angle. This method allows the engineer or designer to clearly communicate the required geometry of the angle and its dimensions. By specifying a single distance—typically associated with either a linear measurement along the angled surface or a projection—and the angle itself, the dimensions convey both the magnitude and orientation of the surface.

The use of one distance simplifies the interpretation of the drawing, as it enables professionals to easily visualize the spatial relationship and apply the information in manufacturing or assembly. This approach is especially useful in scenarios where the angled surface is critical to the design's functionality or when space constraints exist.

In contrast, other options would not provide the same level of clarity or may not sufficiently define the surface for practical use. Specifying two locations along the surface can complicate the understanding of the angle without the corresponding angle measurement. Using standard dimensions alone does not account for the specific geometry of an angled surface, which may need custom angles and distances tailored to the design at hand. Detailing the thickness of the material focuses solely on the material properties rather than the angular dimension itself. Thus, the most practical and informative method for dimensioning angled surfaces is indeed by indicating one distance and the angle.