Question

the volume of a cuboid is 448cm3.Its height is 7cm. Find a side of the square base and surface area of a cuboid.
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Answer 1

Answer:

Answer

volume of cuboid =l×b×h=448cm  

3

 

                             =l×b×7=448cm  

3

 

                             =l×b=64cm  

2

 

but base is square  

∴l=b

∴l  

2

=64cm  

2

 

⇒l=b=8cm

surface area =2(lb+lh+bh)

=2(8×8+8×7+8×7)  

=2(64+56+56)  

=352cm  

2

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