Question

please answer this with step
i will mark them as the brainliest !!!

Answer 1

Answer:

cuboidal box - a

Step-by-step explanation:

(a)

Length of cuboidal box = 60 cm.

Breadth of cuboidal box = 40 cm.

Height of cuboidal box = 50 cm.

∴ Total surface area of cuboidal box = 2(lb + bh + hl)

= 2(60 * 40 + 40 * 50 + 50 * 60)

= 2(7400)

= 14800 cm²

(b)

Length of cuboidal box = 50 cm.

Breadth of cuboidal box = 50 cm.

Height of cuboidal box = 50 cm.

∴ Total surface area of cuboidal box = 2(lb + bh + hl)

= 2(50 * 50 + 50 * 50 + 50 * 50)

= 2(7500)

= 15000 cm²

Therefore, the cuboidal box(a) requires the lesser amount of material to make.

Hope it helps!