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L2 = (12+1)x(10+1) = 12x11 = 132 m2
luas yang diarsir = 132-120 = 12 m2
2. Lpersegi panjang = 120x60 = 7200 m2
L setengah lingkaran = (1/2) π r² = (1/2) (3,14)(30)² = 1.413 m2
luas keseluruhan = L persegi panjang + 2(L setengah lingkaran)
= 7200 + 2(1.413) = 10.026 m²