Question

12. A cube of side 4 cm is cut into cubes of side 1 cm.
Find the total surface area of all the small cubes.​

Answer 1

Step-by-step explanation:

here vol³ of a cube= (4cm)³

= 64cm³

vol³ of smaller cube = (1cm)³

= 1cm³

total cubes obtained= 64cm³/1cm³= 64

T.S.A of a smaller cube= 6a² = 6×(1cm)²= 6cm²

Now TSA of such 64 cubes= 64×6cm²= 384cm²