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3 September, 14:07

The angles of a triangle are 80?, 2x + 2?, and 5x?. What is the value of x? Enter your answer in the box. x =

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  1. 3 September, 14:56
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    The triangle angle-sum theorem says that all those angles added together equal 180. Therefore, 80 = 2x + 2 + 5x = 180. 7x + 82 = 180 and 7x = 98. That means that x = 14.
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