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I need help with this... I don't understand geometry at all lol.
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Feb 25, 2017
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I need help with this... I don't understand geometry at all lol.
Mathematics
high-school
Johni
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1. vertical angle theorem and triangle angle sum theorem
2. The sum of the interior angles of a triangle = 180
so < x = 180 - (70 + 30) = 180 - 100 = 80
and < y is a vertical angle to < x...and vertical angles are equal..
so < y = 80
Christopher Lee
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Mar 1, 2017
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