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8th Class Mathematics Squares and Square Roots Question Bank Squares and Square Roots

  • question_answer
    Which of the following is a Pythagorean triplet?

    A)  \[(6,8,10)\]                       

    B)                         \[(3,4,7)\]                          

    C)                         \[(5,12,18)\]                     

    D)                         \[(2,3,6)\]                          

    Correct Answer: A

    Solution :

    General form of Pythagorean triplet is \[(2m,\,{{m}^{2}}-1,{{m}^{2}}+1).\]. Let \[m=3\]. Then \[2m=6,\text{ }{{m}^{2}}-1={{3}^{2}}-1=8\] and \[{{m}^{2}}+1=32+1=10\]. \[\therefore \]  \[(6,\,8,\,10)\] is a Pythagorean triplet.


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