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 the box
@Mathe