a box with a square base and a closed top has volume 50 and dimensions b x b x h a formula for its surface area in terms of b is given by which of the following

Question

a box with a square base and a closed top has volume 50 and dimensions b x b x h a formula for its surface area in terms of b is given by which of the following

a(b)=2b^2+20/b

a(b)=2b^2+100/B^2

a(b)=2b^2+100/b

Answer 1

50 = b²h

50 /. b² = h

Surface area is only the four sides:

SA = 4(b)((50 / b²)

TA (total area) includes the top and bottom

TA = 2b² + 4(b)((50 / b²)