00063272 00063272

02-08-2021
Mathematics

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Аноним Аноним

02-08-2021

Answer:

135.7 yd²

Step-by-step explanation:

Surface area of the cone,

πr²+πrl

= π×3²+π×11.4×3

= 43.2π

= 135.7 yd² (rounded to the nearest tenth)

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