00063272
00063272 00063272
  • 02-08-2021
  • Mathematics
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  • 02-08-2021

Answer:

135.7 yd²

Step-by-step explanation:

Surface area of a cone: πr²+πrl, where r = radius and l = slant height

πr²+πrl

= π×3²+π×3×11.4

= 216π/5

= 135.7 yd² (rounded to the nearest tenth)

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