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sisi miring trapesium = 10 cm (triple antara 6 dan 8)
luas trapesium = 1/2 x (20+12) x 6
= 1/2 x 32 x 6
= 96 cm²
Luas prisma = (2 x luas alas) + (keliling alas x tinggi prisma)
= (2 x 96) + ((20+12+6+10) x 20)
= 192 + (48 x 20)
= 192 + 960
= 1152 cm²
jawaban : D
semoga membantu ya :)