Luas permukaan bangun diatas adalah..
[tex]v = luas \: trapesium \times tinggi \: prisma \\ v = ( \frac{1}{2} \times (a + b) \times t \: trapisium) \times 12 \\ v = ( \frac{1}{2} \times (8 + 14) \times \sqrt{5 { }^{2} - 3 {}^{2} } ) \times 12 \\ v = 11 \times 4 \times 12 \\ = 528 \: cm {}^{3} [/tex]
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