Except for one face of a given cube, identical cubes are glued through their faces to all the other faces of the given cube. If each side of the given cube measures 3 cm, then what is the total surface area of the solid body thus formed ?
A. 225 cm2
B. 234 cm2
C. 270 cm2
D. 279 cm2
Answer: Option B
Solution(By Examveda Team)
Clearly, each of the 5 faces of the given cube are glued to a face of another cube∴ Total surface area of the solid :
= 5 × 5a2 + a2 = 26a2
= (26 × 32) cm2
= 234 cm2
This Question Belongs to Arithmetic Ability >> Volume And Surface Area
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