Determine 'x' when y=40°
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According to linear pair,
2x + y = 180°
2x + 40° = 180°
2x = 180 - 40
2x = 140°
x = 140/2
x = 70°
Answered by
1
according to the linear pair
2x+y = 180
2x + 40 = 180
2x = 140
x= 70
hence the angle is 2x = 2×70 = 140
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