Respuesta :

Answer:

55°

Step-by-step explanation:

35°+ 90° + ? =180°

? = 180° - 125°

= 55°

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55°

Step-by-step explanation:

let the missing angle be x

x + 90° + 35° = 180°

(angle sum theorem)

  • the sum of all 3 angles of triangle is always 180°

x + 125° = 180°

x = 180° - 125°

x = 55°