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Please help me this question​

Please help me this question​-example-1

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I think it’s b. Don’t be mad if I get it wrong
User Jdias
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4 votes

Answer:


C) 1210m^2

Explanation:

Initial Length of the rope (r) = 12 m

Final length of the rope (R) = 23 m


Additional\ area\ acquired\ = Final Area- Initial Area\\=\pi R^2- \pi r^2\\=\pi (R^2-r^2)\\=\pi (23^2-12^2)\\=\pi (529-144)\\=\pi (385)\\=385\pi \\\\As\ \pi = (22)/(7) \\\\Hence,\\385\pi \\=385 * (22)/(7) \\=55*22\\=1210 m^2

User Valorl
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