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      Question

      A right-angled triangle has one leg of 12 cm and the

      hypotenuse of 13 cm. Find the length of the other leg.
      A 5 cm Correct Answer Incorrect Answer
      B 6 cm Correct Answer Incorrect Answer
      C 7 cm Correct Answer Incorrect Answer
      D 8 cm Correct Answer Incorrect Answer

      Solution

      Use the Pythagorean theorem: a┬▓ + b┬▓ = c┬▓ Where a and b are the legs, and c is the hypotenuse. Substitute the given values: 12┬▓ + b┬▓ = 13┬▓ 144 + b┬▓ = 169 b┬▓ = 169 - 144 b┬▓ = 25 b = тИЪ25 b = 5 cm Correct Option: a) 5 cm

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