Question

a cardboard box is form of a cube without leead if its total surface area of the box is 180 square centimetre what is the dimension of the box

Answer 1

Hi friend,
Surface area of cardboard = 6l²-l²
                                           = 5l²
5l²=180 (given)
l²= $\frac{180}{5}$
l²= 36
l=6
so, the side of box is 6 cm.
______________________________________________Thanks :)_______

Answer 2

5a2=180
a=6
a2=36
Dimension is 6cm