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Find the measures of the numbered angles. (Hint: You may need to solve for x first!)

Find the measures of the numbered angles. (Hint: You may need to solve for x first-example-1
User Elvikingo
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Since they are vertical angles, we can conclude:


m\angle19=90

∠19 and ∠20 are corresponding angles, so:


\begin{gathered} m\angle19=m\angle20 \\ m\angle20=90 \end{gathered}

Find the measures of the numbered angles. (Hint: You may need to solve for x first-example-1
User MrFisherman
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