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The oldest known type of arch is the _________________. a. corbel arch b. groin arch c. round arch d. none of the above

User Gunaseelan
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2 Answers

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16 votes

Answer:

option a

Step-by-step explanation:

took test

User Ray Vahey
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22 votes
22 votes

Answer:

A

Step-by-step explanation:

User Erik Lydecker
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