Piyush365
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A cube of side 5 cm is painted on all its faces. If it is sliced into 1 cm³ cubes, how many of these 1 cm³ cubes have: (i) exactly three faces painted? (ii) exactly two faces painted? (iii) exactly one face painted? (iv) no face painted?

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For a 5 cm cube sliced into unit cubes: 8 corner cubes have three faces painted, 12 × 3 = 36 edge cubes have two, 6 × 9 = 54 face-center cubes have one and 3³ = 27 interior cubes have none.

Cbse Class 9 Maths Ganita Manjari Part 2 Solutions
Class 9 maths ganita manjari part 2 chapter 14 question answer

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