alleryA cube has edge l. What is the area of its four side faces together?
A6l2
Bl3
C4l2
D2l2
Answer & Solution
Correct answer: C. 4l2
1. Each face of a cube has area l2.
2. Four side faces give 4 × l2.
3. 6l2 would include the top and bottom as well.
_Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, 9.4.2 Cube_
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