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Type of quadrilateral

  1. Jun 17, 2015 #1
    1. The problem statement, all variables and given/known data
    If angles of a quadrilateral are in the ratio 2:7:2:7, then the quadrilateral is?
    a) Square
    b) Rectangle
    c) Rhombus
    d) Parallelogram

    2. Relevant equations
    2x+7x+2x+7x= 360
    x=20



    3. The attempt at a solution
    Since two pairs of opposite angles of a quadrilateral are equal, hence it must be a parallelogram...
    The book says rhombus as an answer... The book is wrong... Right?
     
  2. jcsd
  3. Jun 17, 2015 #2

    Dick

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    Science Advisor
    Homework Helper

    Right. It has to be a parallelogram. It doesn't have to be a rhombus (though it might be).
     
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