quebone quebone
  • 11-07-2017
  • Mathematics
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what is the measure

what is the measure class=

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syed786
syed786 syed786
  • 11-07-2017
Angle 1 is equal to angle3

And we know. angle 4 plus angle 3 makes an angle 180 degree


SO

We subtract angle 4 to angle 3


Angle 3 + angle 4 = 180°


40 + angle 4 = 180°

Angle 4 = 180-40 = 140

Angle 4 = 140° answer


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