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2 votes
Please help me ! Find y

Please help me ! Find y-example-1
User Inodb
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2 Answers

3 votes
180° - 71° = y(109°)
User Kingcoyote
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3 votes
109° as an icoloces triangle (you can tell by the two lines) has 2 identical angels so the two bottom angels are the same and the angels on a straight line add up to 180°
User Kriysna
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