Jawabanmu

2014-03-10T18:44:44+07:00
L = 1m
T1 = 20
T2 = 200
α = 0,000012

ΔL= L0.α.ΔT
    = 1. 0,000012. 200
    = 0,0024

Lt = L0+ΔL
    = 1+0,0024
    = 1,0024