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30 December, 16:55

What is the measure of Angle D E F? Triangle D E F. Angle D is 28 degrees. Side D F extends to form an exterior angle at F with a measure of 135 degrees. 45 degrees 73 degrees 107 degrees 117 degrees

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  1. 30 December, 19:12
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    C. 107 degrees

    Step-by-step explanation:

    First you take 135 then subtract it by 180 to find the missing angle. (a straight line is 180 degrees) then you get 45 and add it to 28. (If you add all the angles up in a triangle you get 180) then you subtract the 45+28 or 73 then subtract 180 by 73 and get 107 or C.
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Home » Mathematics » What is the measure of Angle D E F? Triangle D E F. Angle D is 28 degrees. Side D F extends to form an exterior angle at F with a measure of 135 degrees. 45 degrees 73 degrees 107 degrees 117 degrees
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