Question

Q.11) The volume of a cuboid is 441 cm?. If area of its base is 63cm², what is its height?​

Answer 1

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

Answer 2

Answer:

Volume of cuboid = l × b × h

441 =7× 7 × h

h = 441/49

h = 9 m