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Is 164 a perfect square?

A. Yes, because [tex]$4 \cdot 41 = 164$[/tex], and 4 is a perfect square, so 164 is also a perfect square.

B. No, because there is no whole number that, when multiplied by itself, gives 164.

C. Yes, because [tex]$164 = 100 + 64$[/tex], and 100 and 64 are both perfect squares, so 164 will also be a perfect square.

D. Yes, because perfect squares must be even numbers and 164 is an even number.

Answer :

To determine if 164 is a perfect square, we need to see if there is a whole number that, when multiplied by itself, would result in 164.

1. Understanding Perfect Squares:
- A perfect square is a number that can be expressed as the square of an integer.
- For example, 1, 4, 9, 16, 25, etc., are perfect squares because they are 1×1, 2×2, 3×3, 4×4, 5×5, and so on.

2. Checking 164:
- We need to find if there is any integer [tex]\( n \)[/tex] such that [tex]\( n \times n = 164 \)[/tex].

3. Square Root Estimation:
- The square root of 164 is approximately between 12 and 13 (since 12×12 = 144 and 13×13 = 169).

4. Integer Verification:
- If 12 was the exact square root, multiplying 12×12 would give 144, which is less than 164.
- If 13 was the exact square root, multiplying 13×13 would give 169, which is greater than 164.

5. Conclusion:
- Since there is no integer [tex]\( n \)[/tex] for which [tex]\( n \times n = 164 \)[/tex], 164 is not a perfect square.

Therefore, the correct answer is: "No, because there is no whole number that when multiplied by itself gives 164."

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