Answer :

39285

Answer:

19.7

Step-by-step explanation:

a^2+b^2=c^2

so 18^2+8^2=x^2

324+64=388

x is about 19.7

papercut313
A^2 + B^2 = C^2
18^2 + 8^2 = 388
C = 20

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