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angle LMN and angle STR are supplementary angles. the measure of angle LMN is 71 degrees. what is the measure of angle STR?
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angle LMN and angle STR are supplementary angles. the measure of angle LMN is 71 degrees. what is the measure of angle STR?

User Michael Kopaniov
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1 Answer

4 votes
Angle STR = 109 degrees

180-71=109
User Aapo Kyrola
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