Question

if the total surface area of a cuboid tank is 486 square metre what is the length of one side

Answer 1

If is not given one side so l=b=h
2(lb+bh+hl) =468
2(l²+l²+l²) =468
so l²=81 so l=9 is the answer

Answer 2

• Area of cuboid = l*b*h
• 486 m² =  x*x*x
• x³ = 486
• x = ∛486
• x = 8