Final answer:
Revolved sections are the best method to illustrate changes in cross-sectional dimensions along a U-shaped bracket efficiently.
Explanation:
Cross-sectional dimensions over the length of a U-shaped bracket can best be shown using revolved sections. This method allows for a space-saving representation of how the dimensions change along the length of the bracket. Revolved sections offer a clear visualization of the cross-sectional variations without the need for complex perspective views.
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https://brainly.com/question/31945831
