Question

A cuboidal tin box opened at the top has dimensions 20 cm x 16 cm

x 14 cm. What is the total area of metal sheet required to make 10
such boxes?
Plzzzzz reply!!!!​

Answer 1

9514 1404 393

Answer:

13,280 cm²

Explanation:

The formula for the area of a cuboid can be written as ...

A = 2(LW +H(L +W))

When the area of the missing top is subtracted, this becomes ...

A = LW +2H(L +W)

Then the area of 10 boxes will be ...

A = 10×(20×16 +2×14(20+16)) = 10(320 +28(36)) = 13,280 cm²