79r8tf9jcc 79r8tf9jcc
  • 27-04-2024
  • Mathematics
Answered

find this one too!! please

find this one too please class=


Answer :

olumideolawoyin
olumideolawoyin olumideolawoyin
  • 27-04-2024

Answer:

Angle YDC = 140°

Step-by-step explanation:

15x + 5 = 80 + 6x + 6 (Exterior angle of a triangle is sum of two opposite interior angles)

15x - 6x = 86 - 5 = 81

9x = 81

Divide both sides by 9

x = 9

Angle YDC = 15x + 5 = 15(9) + 5 = 135 + 5

Angle YDC = 140°

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