a rectangular box has a square base and its height is 1cm longer than the length of one side of its base.
a) if x cm is the length of one side of its base, show that its total surface area, A is given by A=
6x^2 +4x cm
b) if the total box surface area is 240cm^2, find the dimensions of the box
a rectangular box has a square base and its height is 1cm longer than the length of one side of its base.
a) if x cm is the length of one side of its base, show that its total surface area, A is given by A= 6x^2 +4x cm
b) if the total box surface area is 240cm^2, find the dimensions of

Question

a rectangular box has a square base and its height is 1cm longer than the length of one side of its base. 
a) if x cm is the length of one side of its base, show that its total surface area, A is given by A= 
6x^2 +4x cm
b) if the total box surface area is 240cm^2, find the dimensions of the box
 a rectangular box has a square base and its height is 1cm longer than the length of one side of its base. 
a) if x cm is the length of one side of its base, show that its total surface area, A is given by A= 6x^2 +4x cm
b) if the total box surface area is 240cm^2, find the dimensions of

anonymous · Answer

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Do you know the quantity of surfaces on a box?

anonymous · Answer

no....is it  A= 6x^2 +4x cm

anonymous · Answer

a box has 6 faces, just like a dice :)

"4 walls + floor + ceiling"

anonymous · Answer

and four of the faces are like this (see picture above to see where this comes from):
|dw:1398418309538:dw|

anonymous · Answer

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