Answer:
Historically, buttresses have been used to strengthen large walls or buildings such as churches. Flying buttresses consist of an inclined beam carried on a half arch that projects from the walls of a structure to a pier which supports the weight and horizontal thrust of a roof, dome or vault.
Explanation:
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Answer:
your speech must be organize. From introduction to conlusion. It is informative so you must choose topic that is beneficial and where your audience can gain knowledge. Avoid fillers and you must have an eye to eye contact with the audience. Lastly, be confident.
