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21-05-2020
Mathematics

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21-05-2020

Answer:

[tex]1,385.44 {ft}^{2} [/tex]

4th answer is correct

Step-by-step explanation:

[tex]\pi {r}^{2} \\ \pi \times 21 \times 21 \\ = 1,385.44 {ft}^{2} [/tex]

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