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Chapter 8 exercise 8.1 question no …

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Chapter 8 exercise 8.1 question no 1 The angles of quadrilateral are in the ratio 3:5:9:13. Find the all angles of the quadrilateral

    • Posted by Priyansh Yadav 3 years, 10 months ago

    CBSE > Class 09 > Mathematics
    • 3 answers

    Devil Ninja Gurpanish 3 years, 10 months ago

    Let the four angles of the quadrilateral be 3x, 5x, 9x and 13x 3x+5x+9x+13x=360 [sum of all angles of the quadrilateral is 360° ] 30x=360 ∘ x=12 Hence, the angles of the quadrilateral are 3×12 ° =36 ° 5×12 ° =60 ° ,9×12 =108° and13×12° =156°

    0Thank You

    Hema Das 3 years, 10 months ago

    Let the angles be 3x, 5x, 9x and 13x => 3x+5x+9x+13x=360∘   [the sum of all angles of a quadrilateral is 360∘] =>30x=360∘ => x=360°÷30 => x=12° Thus, the angles of the quadrilateral are  3×12∘=36∘ 5×12∘=60∘ 9×12∘=108∘ 13×12∘=156∘

    1Thank You

    Yogita Ingle 3 years, 10 months ago

    Let the four angles of the quadrilateral be 3x, 5x, 9x and 13x
     3x+5x+9x+13x=360∘   [sum of all angles of the quadrilateral is 360∘]
    30x=360∘
     x=12∘
    Hence, the angles of the quadrilateral are 3×12∘=36∘, 5×12∘=60∘,9×12∘=108∘and13×12∘=156∘

    0Thank You

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