ashawa2009
ashawa2009
17-04-2021
Mathematics
contestada
Calculate the value of the unknown angle
Respuesta :
Аноним
Аноним
17-04-2021
Answer:
80+2x=180°{co-interior angle}
2x=180-80
2x=100
x=50°
hope it helps.
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WhosNono
WhosNono
17-04-2021
Angle B = Angle D
Angle D = 80
Angle A+B+C+D = 360
Angle C = Angle A
Angle A = 2x
80+80+2x+2x = 360
160+4x=360
4x=360-160
4x=200
X=200/4
x=50
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