W = luas segi empat + luas trapesium + luas segi empat
W = 100. 4 + 1/2. (6-4).(100+50) + 50.(10-6)
W = 400 + 150 + 200
W = 750 J
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W = luas segi empat + luas trapesium + luas segi empat
W = 100. 4 + 1/2. (6-4).(100+50) + 50.(10-6)
W = 400 + 150 + 200
W = 750 J