Respuesta :

saya

considering this is a pythagorean theorem question (a^2+b^2=c^2)

then we can plug this in.

40^2+b^2=41^2

1600+b^2=1681 (subtract 1600 from both sides to isolate b)

b^2=81  (square root)

b=9

B=9
Reason: I took this already
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