The sum of the measures of two exterior angles of a triangle is 205. What is the measure of the thir

Discussion in 'Calculator Requests' started by math_celebrity, May 27, 2017.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    The sum of the measures of two exterior angles of a triangle is 205. What is the measure of the third exterior angle?

    The sum of exterior angles for a triangle is 360.
    To find the third exterior angle, we take 360 - 205 = 155.

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