October 2018 2 545 Report
Pelat besi bersuhu 20⁰C mempunyai ukuran 50cm x 20cm. Jika pelat besi dipanaskan sampai suhu 120⁰C, hitunglah tambahan luas dan luasnya setelah dipanaskan. (koefisien muai panjang besi = 12 x 10⁻⁶ /⁰C)
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