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    Mathematics
    Grade-8
    Easy

    Question

    Identify the irrational number among these numbers.

    1. square root of 73
    2. square root of 16
    3. square root of 169
    4. square root of 225

    hintHint:

    Irrational numbers refer to those numbers that cannot be represented as a simple fraction.

    The correct answer is: square root of 73

      TO FIND-
      Irrational number from the given options
      SOLUTION-
      √ 169 = 13
      √ 16 = 4
      √ 225 = 15
      √ 73 = √ 73
      From the above calculations, we observe that-
      all the other options except option d i.e. √ 73 can be written as a simple fraction.
      Hence, √ 73 is an irrational number.
      FINAL ANSWER-
      Option 'd' i.e. '√ 73 ' is the correct answer to the given question.

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