A cube of side 5cm is painted on all its faces. If it is sliced into 1 cubic centimeter cubes, how many 1 cubic centimeter cubes will have exactly one of their faces painted ?
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2 slices of 1 cubic cm will be exactly painted
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6
Answer:
54
Step-by-step explanation:
as the side of cube is 5 cm, 25 painted cubes can be seen on each face...
but we want the unit cubes having exactly 1 of its face painted ...
therefore .....no. of cubes at each fave =25 - 4 -12= 9
(because 4 corner cubes and 12 edge cubes have more than one face painted)
Now, total no. of unit cubes= 9*6 =54
(no. of faces=6)
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