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Angle sum theorem. y=? Degrees

Angle sum theorem. y=? Degrees
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3 votes
Angle sum theorem. y=? Degrees

Angle sum theorem. y=? Degrees-example-1
User Leo Moore
by
8.0k points

1 Answer

4 votes

Answer:

y = 55°

Explanation:

By exterior angle theorem:

y = 25° + 30°

y = 55°

User Vlad Visinescu
by
8.6k points
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