Question

From each face of a 3 x 3 cube, the middle 1 x 1 cube is taken out:

What is the surface area of this modified cube?​

Answer 1

Answer:

buddy

if middle cube is taken out

we know there are total 6 sides so 6 blocks of 1 ×1 are taken out

assume they are not take out

then surface area of cube will be

6×a^2= 6×3^2= 54

now

surface area of 1 ×1 block is =6×1^2=6

the total surface area of all 6 block removed is

6+6+6+6+6+6=6×6=36

hence the new surface area after removing the 6 blocks is

54-36=18

hence the answer is 18 sq.cm

how you understand

mark as BRAINIST

Answer 2

Answer:

which class question is this ?

please don't report this