Question 107121
Let L=10, w=5, h=5
2L*w+2L*h+2w*h=amt. of box material with no wastage.
2*10*5+2*10+5+2*5*5
=100+100+50
=250
Add 250*.1=25 for wastage
=275 cm^2 of cardboard you need.
Ed