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= 12 × 60/10
= 72 km/jam (C)
6) °PPKn = 360 - 90 - 60 - 75 - 30 - 81 = 24°
PPKn = 24°/90° × 240 buah
= 64 buah (B)
7) °IUD = 360 - 92 - 58 - 96 = 114°
IUD = 114/360 × 900
= 285
8) °buruh = 360 - 135 - 60 - 45 - 90 = 30°
pekerja swasta : buruh = 45 : 30
= 3 : 2
9) b
10) caranya sama dg no 8