Question

total surface area of a box,when each dimension is tripled?

Answer 1

If length =l,breadth = b, height = h Rotal surface area = 2(lb+lh+bh)----(1) If each dimension is tripled New length = 3l, breadth = 3b, height = 3h TSA = 2[3l*3b+3l*3h+3b*3h] = 9*2(lb+lh+bh) =9*(1) Means 9times of first tsa