Use a net to find the lateral area and the total surface area of the cereal box. side 12 inches length 8 in width 2 inches what is lateral area: what is surface area:

Lateral area is given by:
2lh+2wh

l-8 in
w-2 in
h-12 in

thus:
lateral area will be:
2(8*12)+2(2*12)
=192+48
=240 in^2

b] The surface area will be:
SA= 2(l*w)+2(l*h)+2(h*w)
SA=2(2*8)+2(2*12)+2(8*12)
SA=272 in^2