aniya132435
aniya132435 aniya132435
  • 22-12-2020
  • Mathematics
contestada

Find the measure of angle A.
80°
10x - 5
10x + 5

Respuesta :

unicorn3125
unicorn3125 unicorn3125
  • 24-12-2020

Answer:

          45° or 55°  {you didn't say which one is A}

Step-by-step explanation:

10x - 5° + 10x + 5° + 80° = 180°

20x = 100°

x = 5°

10x - 5° = 10×5° - 5° = 45°

10x + 5° = 10×5° + 5° = 55°

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