456123789alexis 456123789alexis
  • 19-11-2021
  • Mathematics
contestada

please help me with this​

please help me with this class=

Respuesta :

conneromalley02
conneromalley02 conneromalley02
  • 23-11-2021

Answer: x = 90°, therefore 3x = 270°

Step-by-step explanation:

The null space on the left of the shape is a 45-45-90 triangle. Since the internal angle is therefore 90°, 3x = 360°-9°, solving for x this yields x= 90°.

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