nycastrid23 nycastrid23
  • 27-06-2021
  • Mathematics
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What is the surface area of a sphere with a radius of 21 units

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amnar14
amnar14 amnar14
  • 27-06-2021

Hope this helps

Answer: 5541.77

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AyoMiDeEsth
AyoMiDeEsth AyoMiDeEsth
  • 27-06-2021
  • formulae is 4πr²
  • 4×22/7×21²
  • 4×22×3×21
  • cause 7 divided the first 21 which gave it 3
  • answer=5544cm²
Answer Link

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