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Pembahasan
Dik Ao = P . l
= 0,5 m . 0,2 m = 0,1 m
ΔT = (100 - 30 ) = 70 C
β = 0,000034 /C
Dit A1 ?
jawab.
A1 = Ao + (A0 . β. ΔT)
= 0,1 +( 0,1 x 0,000034 x 70 )
= 0,1 + 0,000238
= 0,100238 m^2
Jadi luasnya 0,100238 m^2
Semoga membantu :) D