tamarrlong6 tamarrlong6
  • 08-10-2020
  • Mathematics
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ciaromee
ciaromee ciaromee
  • 08-10-2020

(3x + 5)° + (10x - 7)° = 180°

13x + (-2) = 180

13x = 180 + 2

13x = 182

x = 14

∠QRT = 3 * 14 + 5 = 42 + 5 = 47°

∠TRS = 10 * 14 - 7 = 140 - 7 = 133°

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