Respuesta :

JohnnyLim
85°
To get this,know that the total angle of triangle is 180°[(n-2)180] n=number of sides.Total angle on a straight line is 180°.
There are 3 angle you need to calculate.
Upper angle:180-133=47°
Right angle:180-142=38°
Left angle:180°-47°-38°=95°
n+95°=180°
n=180°-95°=85°
zurithepenguinor6qn6
honestly the answer should be 95 because we all know that a triangle = 180. 133 - 142= 275. 275 - 95 = 180. but the closest to 180 is 85. 275 - 85 = 190. so i think that the answer is 85. hope this kinda helped (:

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