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      Question

      Find the area of triangle having sides 3m, 4m, and

      5m.
      A 6 cm² Correct Answer Incorrect Answer
      B 30 cm² Correct Answer Incorrect Answer
      C 84 cm² Correct Answer Incorrect Answer
      D 210 cm² Correct Answer Incorrect Answer

      Solution

      As sides 3, 4 & 5 is a Pythagoras triplet means 3 2 + 4 2 = 5 2 ; this is a right angle triangle. So area of this triangle = 1/2 Ă— base Ă— height = (1/2) Ă— 3 Ă— 4 = 6 cm 2

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