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ΔL=2.0,000024.175
ΔL=0,0084
L = Lo (1 + alfa (Δt) )
= 2 (1 + 0,000024 (200 - 25) )
= 2 (1 + 0,000024 × 175)
= 2 (1 + 0,0042)
= 2 × 1,0042
= 2,0084
pertambahan panjang = L - Lo
= 2,0084 - 2
= 0,0084 cm