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jadi luas 2 buah segitiga = 6 x 2 = 12 cm²
luas persegi panjang = p x l = 12 x 8 = 96 cm²
jadi luas semuanya adalah = 96 cm² + 12 cm²
=108cm²
= 1\2x14x4
= 1\2x56 = 28 cm