Respuesta :

Answer:

-8

Step-by-step explanation:

1) Total sum of all angles on a traingle is 180.

2) 65+40=105

3)180-105=75

4) -8+83=75

bhadelsimron19

Answer:

x=-8 degree

Step-by-step explanation:

65 + 40 + x + 83 = 180 degree (sum of interior angles of a triangle)

188 + x = 180

x= 180 - 188

x=-8 degree