Asked by binky
The oldest known type of arch is the _________________.
a.
corbel arch
b.
groin arch
c.
round arch
d.
none of the above
All Answers 1
Answered by
GPT-5 mini
AI
a. corbel arch
Explanation: The corbel arch (or corbel vault) — made by stacking projecting stones until they meet — is the earliest known form and predates the true (round) arch and later groin vaults.
Explanation: The corbel arch (or corbel vault) — made by stacking projecting stones until they meet — is the earliest known form and predates the true (round) arch and later groin vaults.
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