Question 63461
a box with a square base has a surface area 3 SQ.METRES.(including the top) of . express the volume V of the box as a function of the width W of the base 
S.A = A = 6*W^2
W^2  = A/6
W = SQRT(A/6)
V=W^3 = [SQRT(A/6)]^3 
FOR A = 3,WE HAVE 
W=SQRT(1/2)
V=[SQRT(1/2)]^3 = 1/[2SQRT(2)]=SQRT(2)/4