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User Onur Eker
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1 Answer

5 votes

Answer:

y = 100°

Explanation:

x = 40° (vertical angles are congruent)

y is an exterior angel of a triangle that has two opposite internal angles, x (40°) and 60°.

According to the exterior angle of a triangle, thus:

y = 40 + 60

y = 100°

User Apostolos
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