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Calculate the slant height L of the frustum, given its height h=7.2 m, larger radius R=12 m, and smaller radius r=6 m.

Mathematics

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  1. Calculate the slant height LL of the frustum.

    The formula for the slant height is L=h2+(R−r)2L = \sqrt{h^2 + (R-r)^2}.

    L=(7.2)2+(12−6)2L = \sqrt{(7.2)^2 + (12-6)^2} L=51.84+62L = \sqrt{51.84 + 6^2} L=51.84+36L = \sqrt{51.84 + 36} L=87.84L = \sqrt{87.84} L≈9.3723 mL \approx 9.3723 \, \text{m}
  2. Calculate the curved surface area (S.A)

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