The square root of 64 is 8 because 8 × 8 = 64. Every perfect square has a positive and a negative square root, but here we consider only the positive root. So, √64 = 8.
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 find the square root of 64, we ask which number multiplied by itself gives 64. The answer is 8 because 8 × 8 = 64. Also, (–8) × (–8) = 64, but we usually take the positive root. So, √64 = ±8, but in this case, we consider only the positive value. Thus, the square root of 64 is 8.
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