question 1 - 80\nengineering design principles are used to evaluate designs according to flexibility…

question 1 - 80\nengineering design principles are used to evaluate designs according to flexibility, balance, function and\n○ proportion\n○ ethics\n○ economics\n○ historical significance
Answer
Brief Explanations:
Engineering design principles focus on physical - related aspects like flexibility, balance, and function. Proportion is also a key physical design - related factor. Ethics pertains to moral principles, economics to financial aspects, and historical significance to past - related importance, which are not core physical design elements for evaluating designs in the context of engineering design principles.
Answer:
A. proportion