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4 persegi panjang dan 1 segitiga
Area 1 : 6 x 7 = 42
Area 2 : 4 x 5 = 20
Area 3 : 6 x 7 = 42
Area 4 : 6 x 9 = 54
Area 5 : 1/2 x 6 x 9 = 27
-------------------- +
185 cm²
Keliling = jumlah sisi sisi terluar
= 7+6+5+4+2+6+7+6+8+6+2+6
= 60 cm