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04-03-2019
Mathematics

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What is the value of X? Enter your answer in the box. {8th Grade Math, Triangles, Explanation and Answer, Practice Test}

What is the value of X Enter your answer in the box 8th Grade Math Triangles Explanation and Answer Practice Test class=

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04-03-2019

all interior angles of triangles add up to a total sum of 180° so by adding 39 and 102 you get 141, 180-141=39 x=39

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