Jawabanmu

2014-03-04T17:51:20+07:00
Koefisien = 200,24-200/200x100 = 0,24/20000 = 0,000012/°C
2014-03-04T19:15:42+07:00
Dik = Lo = 200 cm
        ΔL = 200,24
        to = 0 C
        t = 100 C
        Δt = 100 C
Dit = α..........???
Penyelesaian = 
α = ΔL/Lo x Δt
   = 200,24/200 x 100
   = 200,24/20000
   = 100,12