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  • Question
  • The perimeter of a rectangle whose length is 6 metre more than its breadth is 84 metre. What is the area of the triangle whose base is equal to the diagonal of the rectangle and height is equal to the length of the rectangle?


  • Options
  • A. 360sq metre
  • B. 380 sq metre
  • C. 360 metre
  • D. 400 sq metre

  • Correct Answer
  • 360sq metre 

    Explanation

    Let the breadth of rectangle be x m.

    Then, the length of rectangle = (x+ 6) m

    Perimeter of rectangle = 2 (x+x+ 6) m

    Therefore, 2 (x+x+ 6) = 84 m

    4x+ 12 = 84

    4x= 84 ?12
    4x = 72/4 = 18
    Therefore, length of rectangle = 18 + 6 = 24 m = height of triangle

    Diagonal of rectangle = ?(324+576) = 30 m = base of triangle

    Therefore, are of triangle =1/2× base × height =1/2× 24 × 30 = 360 sq. m

  • Tags: Bank Exams, Bank PO, Bank Clerk

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