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HosSsam HosSsam
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6 years ago
The Roman discovery of the correct mathematical ratio of 1:2 for an aspect of building allowed them to build what construction safely?
 
  A. the keystone
  B. the arch
  C. the ashlar
  D. the voussoir
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kcrawkcraw
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6 years ago
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HosSsam Author
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6 years ago
Helped a lot
jcarter
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Yesterday
Brilliant ツ
dearsophia21
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2 hours ago
Thanks for your help!!
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