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 ...
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Yes, the sum of two consecutive triangular numbers gives a perfect square. For example, 1+3 = 4 (2²), 3+6 = 9 (3²). The next term in the pattern would be 10 + 15 = 25, which is 5². Class 8 Mathematics ...