Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A 4 cm wooden cube is cut into 1 cm cubes. What is the percentage increase in the surface area after such cutting? (Urgent answer...plzzz fast!!)



Cube has 6 faces. The surface area of a cube which has a side of 4cm is 6*4^2=6*16 cm^2.

Now, when the cube is cut into the smaller cubes with side of 1cm we'll get 4*4*4=64 cubes and each will have the surface area equal to 6*1^2=6 cm^2, so total surface are of these 64  cubes will be 6*64 cm^2.

6*64 is 4 times more than 6*16 which corresponds to 300% increase.
0 0 0
Pls mark as brainliest if it helped!! :)
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts