willamjos
willamjos willamjos
  • 11-12-2017
  • Mathematics
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carlafossil320
carlafossil320 carlafossil320
  • 12-12-2017
Work backwards with pythagoras' theorem:
c^2=a^2+b^2
Here, a and b both equal to x. Therefore, you can write this as 8^2=2x^2. So 64=2x^2. Sqrt on both sides to give you 8=2x, hence x=4. However I must warn you that this working out may have a flaw, as I found that x actually equals to 5.66
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