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There are countless. For instance, take a look at any bridge. If the angles are not congruent, then BOOM, the whole thing will come down. It will exert to much force on a certain part of the bridge. CivilEngineers need to make sure that the angles are congruent, even to 0.01 degrees. That's just one example.

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∙ 13y ago

What else can I help you with?