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Sagot :
Answer:
b
Step-by-step explanation:
2y + 40 and 60 are same- side exterior angles and sum to 180° , that is
2y + 40 + 60 = 180
2y + 100 = 180 ( subtract 100 from both sides )
2y = 80 ( divide both sides by 2 )
y = 40
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