A cube of edge 3 cm is devided into eight cubes of same edge. Find total surface area obtained.
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Answer:
Step-by-step explanation:
Surface area of original cube is 6b
sq
Volume of cube is b cube
Volume of smaller cube is
8
b
3
, which implies side length of smaller cube is
2
b
Surface area of 8 smaller cubes combined is 8×6× 2 sq
b
=12b sq
Difference is 12b sq
−6b sq
=6b sq
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