wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

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


A

484 cm2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

384 cm2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

262 cm2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

460 cm2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

384 cm2


Side of original cube = 4 cm.

Number of cubes of side 1 cm
=Volume of bigger cubeVolume of smaller cube
=4×4×41×1×1
=64

Now, surface area of one cube
= 6(side)2
= 6×(1)2
= 6×1
= 6 cm2

surface area of 64 cubes
=6×64 cm2
=384 cm2

Hence, total surface area of all the small cubes is 384 cm2.


flag
Suggest Corrections
thumbs-up
68
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Volume of Solids
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon