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How can I get L1 and L2 in missing vertical angles?

How can I get L1 and L2 in missing vertical angles?-example-1
User Nhnghia
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1 Answer

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The vertical angle theorem states that the opposite angles formed by two lines that are intersected are always equal to each other

This can be understood in the graph shown as


\begin{gathered} L1=L3 \\ L2=L4 \\ \text{Meaning} \\ L1=103.1 \\ L2=76.9 \end{gathered}

How can I get L1 and L2 in missing vertical angles?-example-1
User Solvemon
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