Yes. The number of unit cubes in a cube with edge length 4 units is 4 × 4 × 4 = 64. So, the cube contains 64 unit cubes arranged in 4 layers, each having 16 cubes (4 × 4).
Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube NCERT solutions
Class 8 Mathematics Chapter 1 A Square and A Cube question answer
To estimate the number of unit cubes in a 4-unit cube, we calculate the cube of the side length.
Volume = 4³ = 4 × 4 × 4 = 64
That means the cube is made up of 64 small cubes, each of 1 unit³.
Each layer has 4 × 4 = 16 cubes and there are 4 such layers.
So, the total number of unit cubes = 64.
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