tminor395
tminor395 tminor395
  • 02-06-2021
  • Mathematics
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xthwcp32v8
xthwcp32v8 xthwcp32v8
  • 02-06-2021
the length is b 12 !
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bhadelsimron19
bhadelsimron19 bhadelsimron19
  • 02-06-2021

Answer:

Step-by-step explanation:

volume of pyramid with square base=a^2(h/3)

84=a^2*7/3

84*3/7=a^2

252/7=a^2

36=a^2

[tex]\sqrt{36[/tex]=a

6=a

therefore length=6

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