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What is the value of x?

What is the value of x?-example-1
User Rbrito
by
7.7k points

1 Answer

13 votes

Answer:

x=139°

Explanation:

7 sides

180(7-2)=900°

900-(118+129+129+109+137)=278

278/2=139°

User Antonio Moore
by
7.4k points