Respuesta :

jashae2003

Answer

The answer is 75

Rinkhals

C + 45° is the Exterior Angle of the Triangle

The Interior Angle with respect to C + 45° is 180° - C - 45° = 135° - C

We know that Sum of Angles in Triangle = 180°

⇒ C - 30° + C + 135° - C = 180°

⇒ C + 105° = 180°

⇒ C = 180° - 105°

⇒ C = 75°

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