Question

A 3-D object made of 2 cm × 2 cm × 2 cm cubes is dipped in paint. . If the painted object is separated into individual cubes, then the total area of the unpainted surfaces will be *

Answer 1

Answer:

The answer is "$48 \ cm^2$"

Step-by-step explanation:

Area of every face:

$A=bh$

   $=2\times 2\\\\=4 \ cm^2$

count overlaps and times by 2:

So,

$\to 6 \times 2= 12$

There are 12 unpainted faces each face is $4 \ cm^2$

$\to 12 \times 4 \ cm^2\\\\\to 48 \ cm^2$