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Matematika
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Pertanyaan
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1 Jawaban
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1. Jawaban ammar1311
18. L= ½ π.r² 1/2.3,14.10.10 = 314/2 = 157
L= p x l = 44.20 = 880
L= a.t.1/2 =20.18/2 = 180
L total = 157 + (880-180)
=157 + 700 = 857
19.