Seudónimo Seudónimo
  • 25-02-2021
  • Mathematics
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please help and show ur work!

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pineapple45 pineapple45
  • 25-02-2021
15.6
18^2-9^2 will give you 243 and the square root of 243 is approximately 15.6
Using a^2+b^2=c^2
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bestbrain91
bestbrain91 bestbrain91
  • 25-02-2021

Step-by-step explanation:

let the missing side be "X"

Therefore :9² +x²=18²

81+x²=324

x²=324-81

x²=243

√x²=√243

x=15.6

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