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Proving the Sum of the Interior Angle Measures of a Triangle Is 180°

I already solved the problem on my own so here is the answer, and a free 20 points.

Proving the Sum of the Interior Angle Measures of a Triangle Is 180° I already solved-example-1
User Vassili
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2 Answers

1 vote

Answer:

180

Explanation:

User Sfinkens
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5 votes

Answer:

thanks

Explanation:

User Chaosifier
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