tanyablanco
tanyablanco
04-03-2022
Mathematics
contestada
Solve for x
X=10
X=80
X=100
X=20
Respuesta :
HK0629
HK0629
04-03-2022
Answer: X = 20
——————————-
1st: Supplementary angle = 180°
180 - 100 = 80
——————————-
2nd: It is 180° inside of ALL triangles!!
2x + 3x + 80 = 180
5x + 80 = 180
5x = 100
X = 20
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