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OpenStudy (anonymous):
Triangle DEF where angle E is a right angle. DE measures x; DF measures 55; angle F measures 49 degrees. In △DEF, solve for x. Round the solution to the nearest hundredth.
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OpenStudy (anonymous):
Solve for x knowing that \[ x^2 + 55^2 = EF^2\\ EF \cos(49) = 55\\ \]
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