Respuesta :

Answer:

Answer is option A) 39.3 km

Step-by-step explanation:

[tex]area \: of \: sector = \frac{theta}{360} \times \pi \: {r}^{2} \\ here \: radius \: is \: 10 \: km \: and \: \\ theta \: = 45 \: degrees \\ on \: substituting \: the \: values \: in \: the \: formula \\ area \: of \: sector = \frac{45}{360} \times \pi \: {10}^{2} \\ = 0.125 \times 100\pi \\ = 39.26 \: km \\ then \: area \: of \: sector \: is \\ approximately \: equal \: to \: 39.3 \: km[/tex]

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