Answers

2015-12-10T16:19:36+05:30
L=0.4m or 40cm
b=35cm
h=15
V=l*b*h
40*35*15
21000cm^3
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but here don`t we have to find the total surface area
2015-12-10T16:25:26+05:30
Area of rectangular cardboard =1400sq.cm Length = 0.4m Breadth = 35cm Height = 15cm 1m = 100cm 0.4m = 0.4×100 = 40 volume of = l×b×h = 40×35×15 = 21000
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