A cube of side 3 cm has a volume of 3 × 3 × 3 = 27 cm³. Each small cube has volume 1 cm³. So, we need 27 unit cubes to make a cube of side 3 cm. Class 8 ...
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The nth odd number is given by the formula 2n – 1. For example, the 1st odd number is 1, the 2nd is 3 and so on. This formula helps in calculating square numbers as sums of odd numbers. Class 8 ...