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      Question

      In ╬ФABC,XY is drawn parallel to BC, cutting sides at X

      and Y, where AB = 5.4 cm ,BC = 7.2 cm and BX = 3 cm. What is the length of XY (in cm)?
      A 4.3 Correct Answer Incorrect Answer
      B 3.0 Correct Answer Incorrect Answer
      C 3.2 Correct Answer Incorrect Answer
      D 2.8 Correct Answer Incorrect Answer

      Solution

      AB = 5.4, BX = 3 тЗТ AX = 5.4 тИТ 3 = 2.4 XY тИе BC тЗТ by similarity: XY / BC = AX / AB XY / 7.2 = 2.4 / 5.4 XY = 7.2 ├Ч (2.4 / 5.4) = 7.2 ├Ч (24 / 54) = 7.2 ├Ч (4 / 9) = 3.2 cm

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