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Rom4ik [11]
4 years ago
9

Please understand the explanation

Mathematics
1 answer:
aivan3 [116]4 years ago
4 0

<em>answer =  12.56 \: square \: km\\ radius = 4km \\ area \: of \: quarter \: circle =  \frac{\pi {r}^{2} }{4}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{3.14 \times  {4}^{2} }{4}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{3.14 \times 16}{4}  \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 12.56 \: square \: km \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment</em>

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