Answer :
Final answer:
Warning signs on roads are usually diamond-shaped, but the railroad crossing sign is cross-shaped.
Explanation:
The question was about the shape of various road signs, particularly the railroad crossing sign. Warning signs on roads are often diamond-shaped, but certain ones like the railroad crossing sign are not. The railroad crossing sign is of a unique shape, it is Cross-shaped.
Learn more about Road Sign Shapes here:
https://brainly.com/question/30459647
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