What is colesium staging and other types of staging?

Question: What is colesium staging and other types of staging!?

Ok, so im doing a project for GCSE drama, and im abit stuck!.
I have written about thrust staging and proscenium staging, but i cant find any information on the other types of staging i need to write about!
Here they are : Coliseum, In the round, and Promenade!.
Help PLEAAAAASE!.
Its due in on Tuesday 7th October!
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Best Answer - Chosen by Asker:

That is really weird!.!.
im having the exact same problem!.!.
for the same day too!!!
ah!
i went on to wikipedia for some but i dont know what other types of staging to do!
x
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