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geometry

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in a parallelogram abcd=28,bc=45,and ac=53. is the parallelogram a rectangle?

  • geometry - ,

    I don't understand
    abcd = 28

    I will assume that 28 and 45 are two of the sides and 53 is the diagonal.
    If it it a rectangle,
    28^2 + 45^2 = 53^2
    2809 = 2809 , true, so yes it is a rectangle

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