L = (2xLuas alas)+(3xluas salah satu bidang tegak)
L = (2x(1/2x5x8)) + (3x(12x5))
L = 40+180
L = 220 Cm²
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L = (2xLuas alas)+(3xluas salah satu bidang tegak)
L = (2x(1/2x5x8)) + (3x(12x5))
L = 40+180
L = 220 Cm²