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Bas_tet [7]
3 years ago
5

Find the lateral and total surface area for the cone. If necessary, round to the nearest tenth and leave the

Mathematics
1 answer:
bija089 [108]3 years ago
3 0

9514 1404 393

Answer:

  • 262.2π cm²
  • 392.16π cm²

Step-by-step explanation:

The lateral surface area is the product of half the circumference, and the slant height:

  LA = πrh = π(11.4 cm)(23 cm) = 262.2π cm²

The total surface area adds the area of the base to that:

  A = πr² +LA = π(11.4 cm)² +262.2π cm² = (129.96 +262.2)π cm²

  A = 392.16π cm²

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