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LP = 2 x luas alas + jumlah sisi sejajar
2 (1/2x10x12) + (11x13+11x12+11x10)
120 + 385
505 cm²
V = Luas alas x tinggi
2 (1/2x10x12) x 11
120 x 11
1320 cm³
= 10 x 13 ÷ 2
= 65
V = LP x T
= 65 x 11
= 715