23kdowse
23kdowse
10-10-2018
Mathematics
contestada
Find the measure of the exterior angle.
Respuesta :
choixongdong
choixongdong
10-10-2018
x + 180- 4x = 90
-3x = -90
x = 30
the exterior angle = 4(30) = 120
Answer
120 degrees
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