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Question #ca43b

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May 18, 2017

$18 π \approx 56.549 to 3 dec. places$ $18pi~~56.549" to 3 dec. places"$

Explanation:

$2 π {(3)}^{2}$ $2pi(3)^2$

$= 2 \times π \times 9$ $=2xxpixx9$

$= 18 π \leftarrow exact value$ $=18pilarrcolor(red)" exact value"$

$\approx 56.549 to 3 decimal places$ $~~56.549" to 3 decimal places"$

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