Jawabanmu

2014-04-15T15:47:00+07:00
∆A = Ao.2α.∆T
∆A = 0,3.2(1,7.10^-5).(150-25)
∆A = 6,375.10^-4
A = Ao + ∆A = 0,3+0,0006 = 0,3006 m2
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