8.3k views
3 votes
Angle sum theorem. y=? Degrees

Angle sum theorem. y=? Degrees-example-1
User Leo Moore
by
5.1k points

1 Answer

4 votes

Answer:

y = 55°

Explanation:

By exterior angle theorem:

y = 25° + 30°

y = 55°

User Vlad Visinescu
by
4.9k points