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Verified Answer :

Eu acho que este é o chão de 4,2672 de diâmetro

So the question is asking for the area of the rug. The formula for area of a circle is A=2\(\pi\)r

Since Diameter is just double the radius (r) just half it. The radius would be 7.

Just put that in a calculator and you would get your answer of 43.981