[tex]l \: p \: balok = 2(pl \times \: pt \times lt) \\ = 2((12 \times 8 )+ (12 \times 6) +( 8 \times 6)) \\ = 2(96 + 72 + 48) \\ = 2(216) \\ = 432 \: {cm}^{2} [/tex]
[tex]v \: balok = p \times \: l \times t \\ = 12 \times 8 \times 6 \\ = 576 \: {cm}^{3} [/tex]
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[tex]l \: p \: balok = 2(pl \times \: pt \times lt) \\ = 2((12 \times 8 )+ (12 \times 6) +( 8 \times 6)) \\ = 2(96 + 72 + 48) \\ = 2(216) \\ = 432 \: {cm}^{2} [/tex]
[tex]v \: balok = p \times \: l \times t \\ = 12 \times 8 \times 6 \\ = 576 \: {cm}^{3} [/tex]