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selenab

The lengths of the sides of a triangle form three consecutive odd numbers. The perimeter is 21 centimeters. What is the length of the longest side?

  • one year ago
  • one year ago

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  1. selenab
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    i had 7 and they said it was wrong.

    • one year ago
  2. funinabox
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    well, all this question is asking is "what consecutive odd numbers add up to 21? and what is the largest digit?"

    • one year ago
  3. funinabox
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    for instance, 3+5+7 does not equal 21, therefore it can't be 7 7+9+11 does not equal 21, so it can't be 11 however, there is a sequence of odd numbers that includes 7, that equals 21.

    • one year ago
  4. bhaskarbabu
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    it was 9

    • one year ago
  5. bhaskarbabu
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    5+7+9=21

    • one year ago
  6. 03453660
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    5+7+9 is the answer

    • one year ago
  7. 03453660
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    longest side = 9

    • one year ago
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