Answer:
1656 cm²
Step-by-step explanation:
we are looking for the area needed to cover the surface of the box, aka the surface area
surface area = 2(wl + hl + hw)
here,
w = 6 cm
h = 18cm
l = 30 cm (all are interchangeable)
surface area = 2(wl + hl + hw) = 2(6*30+18*30+6*18) = 1656. this is surface area so it is in cm²
