alleryFind the lateral surface area of a cube of edge 3 cm.
A54 cm2
B36 cm2
C27 cm2
D18 cm2
Answer & Solution
Correct answer: B. 36 cm2
1. Lateral surface of a cube is its four side faces.
2. Each face has area 3 × 3 = 9 cm2.
3. So 4 × 9 = 36 cm2; 54 includes all six faces.
_Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, 9.4.2 Cube_
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