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k = 2 (p +l)
234 = 2 (4l + 2 + l)
234 = 2 ( 5l + 2 )
234 = 10l + 4
234 - 4 = 10l
230 = 10l
l = 23 cm
p = 4l+ 2
p = 4. 23 + 2
p = 92 + 2
p = 94 cm
luas = p × l
= 94 × 23
=2162 cm kubik