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Lsegitiga = 60m/s × 2s
= 120m
Ltrapesium = (60m/s + 80m/s) ÷ 2 × 2s
= 140m
s = 120m + 140m = 260m
NB : jangan disamakan dg satuan luas di matematika...soalnya itu luasnya buat ngitung jarakO_o...cmiiw