Multiple choice

Which of the following is a perfect square?

  1. 22523

  2. 20736

  3. 85477

  4. 56418

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Square of 144 is 20736. 20736 = 144 x 144. Therefore, 20736 is a perfect square.

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