Answer :

[tex]28:R=24:8 \\24R=28\times8 \\ \\R= \frac{28\times8}{24} = \frac{28}{3} \\ \\s=28\\ \\A= R^2\pi +Rs\pi=R\pi(R+s)=\frac{28}{3} \pi(\frac{28}{3} +28)\approx 1,095[/tex]

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