Luas Trapesium sama kaki = 1/2 x jumlah sisi sejajar x tinggi
L = 1/2 x ((12 + 20 + 12) + 20) x 14
L = 1/2 x (44 + 20) x 14
L = 448 cm²
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Luas Trapesium sama kaki = 1/2 x jumlah sisi sejajar x tinggi
L = 1/2 x ((12 + 20 + 12) + 20) x 14
L = 1/2 x (44 + 20) x 14
L = 448 cm²