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Segi banyak terdiri dari 2 buah trapesium yang sama besarLuas = 2 x Luas Trapesium
L = 2 x 1/2 x (jumlah sisi sejajar) x tinggi
L = 2 x 1/2 x (70 cm + 35 cm) x 32 cm
L = 105 cm x 32 cm
L = 3.360 cm²