Pulpen = 360°-(40°+60°+120°)
= 140°
pulpen = 140°/40° × 18lusin (216 buah) = 756 buah pulpen (63 lusin)
pensil = 120/40 × 216 buah = 648 buah (54 lusin)
Spidol = 60/40 × 216 buah = 324 buah (27 lusin)
Maaf ya kalau salah
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Pulpen = 360°-(40°+60°+120°)
= 140°
pulpen = 140°/40° × 18lusin (216 buah) = 756 buah pulpen (63 lusin)
pensil = 120/40 × 216 buah = 648 buah (54 lusin)
Spidol = 60/40 × 216 buah = 324 buah (27 lusin)
Maaf ya kalau salah