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Mathematics 10 Online
OpenStudy (anonymous):

What is the purpose of marks on diagrams showing congruence of lengths or angles? A)Marks must be placed on diagrams, whether or not angles and side lengths are congruent. B)You cannot assume segments are congruent based on their appearance. They must be marked as congruent. C)Diagrams are always to scale, so marks showing congruence are unnecessary. D)A diagram without marks is incomplete.

OpenStudy (compassionate):

B.

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