:If the three angles of a quadrilateral are 120°,50°and 50°respectively, the fourth angle is *​

Question

:If the three angles of a quadrilateral are 120°,50°and 50°respectively, the fourth angle is *​

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Ivy 1 month 2021-08-17T22:13:09+00:00 2 Answers 0 views 0

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  1. Emma
    0
    2021-08-17T22:14:27+00:00

    Answer:

    140°

    Step-by-step explanation:

    The measure of angles of a quadrilateral is always 360°

    Therefore,

    120+50+50 + 4th angle=360

    220 + 4th angle= 360

    Fourth angle = 360-220

    =140°

  2. Emma
    0
    2021-08-17T22:14:46+00:00

    Step-by-step explanation:

    sum of all angles of a quadrilateral is 360°

    120° + 50°+ 50° + x = 360°

    => 220° + x = 360°

    => x = 360° – 220°

    => x = 140°

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