Mathematics (Quadrilaterals)

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2angles of a quadrilateral are 70 degrees and 110 degrees.The other 2 are in the ratio 4:5.Find these angles.

  • Mathematics (Quadrilaterals) -

    the angles sum to 360º

    360 - 110 - 70 = 180

    4n + 5n = 180

    find n , then find the two angles (4:5)

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