seperti itu...............
v=p×l×t
385=11×5×(3+x)
385=55×(3+x)
3+x=385:55
3+x=7
x=4
luas permukaan=2×(p×l + l×t + p×t)
= 2×(55+ 20+ 44)
=2×119
=238cm²
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seperti itu...............
v=p×l×t
385=11×5×(3+x)
385=55×(3+x)
3+x=385:55
3+x=7
x=4
luas permukaan=2×(p×l + l×t + p×t)
= 2×(55+ 20+ 44)
=2×119
=238cm²