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Grade: 7
        27 small cubes are glued together to make a big cube.The exterior of the big cube is painted yellow in colour. How many among each of the 27 small cubes would have painted yellow on

a)only one of its faces?
b)two of its faces?
c)three of its faces?
3 years ago

Answers : (2)

Harsh Patodia
IIT Roorkee
askIITians Faculty
906 Points
							One only on surfaces that is shared by one surface only.
2 will be edges except corners
3 will be 8 edges of cube
3 years ago
Sagar singh
38 Points
							
(a) 6
(B)12
(C)8
see only the innermost cube would be left unpainted so 6+12+8=26
there are 8 vertces of a cube so 8 will be painted fron 3 sides
 
3 years ago
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