Respuesta :

kritika3375

Step-by-step explanation:

Hence it is a triangle So sum of all the angels of triangle is equal to 180°

Then

5x + 6x + x = 180°

12x = 180°

x = 180° / 12

x = 15°

5x = 5*15°= 75°

6x = 6* 15° = 90°

x = 15°

Hope it helps :)

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