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Sergeu [11.5K]
3 years ago
13

Ixl geometry!! please help

Mathematics
1 answer:
pychu [463]3 years ago
8 0

Answer:

75°

Step-by-step explanation:

∠DGF = 2* ∠DEF

10x + 50 = 2(9x - 15)

10x + 50 = 18x - 30

   50      = 18x - 30 - 10x

         50 = 8x - 30

  8x - 30 = 50

8x = 50+30

8x = 80

x = 80/8

x = 10

∠DEF = 9x - 15

          = 9*10 -15

         = 90 - 15

         = 75°

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