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Prove a+b+c=180

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Prove a+b+c=180

    • Posted by Deepak Roy 6 years, 5 months ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Ankita Anand Gupta 6 years, 5 months ago

    Sorry it's constructing

    0Thank You

    Ankita Anand Gupta 6 years, 5 months ago

    By constructimy a line parallel to the base of triangle touching it third vertex and applying alternate opposite angle property.

    2Thank You

    ANSWER
    http://mycbseguide.com/examin8/

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