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Look at this diagram: GHIJKLMNIf HJ and KM are parallel lines and mJIG = 43°, what is mKLN?

Look at this diagram: GHIJKLMNIf HJ and KM are parallel lines and mJIG = 43°, what-example-1

1 Answer

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We are given that lines HJ and KM are parallel. We notice that the angles:


\begin{gathered} \angle KLN \\ \angle HIL \end{gathered}

Are corresponding angles, and therefore they are congruent, that is:


\angle KLN\cong\angle HIL

Also, angles:


\begin{gathered} \angle HIL \\ \angle JIG \end{gathered}

Are vertical angles, therefore, they are equal:


\angle HIL\cong\angle JIG

Therefore, combining the two statements we get:


\angle KLN\cong\angle JIG

Therefore:


\angle KLN=43

Angle KLN equals 43 degrees.

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