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bogdanovich [222]
3 years ago
11

What is the measure of Angle D F E? Triangle D E F. The exterior angle to angle F is 142 degrees. 38 degrees 52 degrees 118 degr

ees 142 degrees
Mathematics
2 answers:
Katyanochek1 [597]3 years ago
5 0

Answer:

38

Step-by-step explanation:

  1. Add the angle and f angle (180)
  2. Now add 142 + f = 180
  3. Now subtract 180 - 142  (= f)
  4. Finally you get your answer 38

Hope this helps you :)

Eduardwww [97]3 years ago
3 0

as the exterior angle is known

sum of that angle and f angle = 180

142 + f = 180

f = 180 - 142

f = 38

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