Angle Basics, SM-Bank 010

Determine, giving reasons, if the two lines cut by the transversal in the diagram below are parallel. (1 mark)

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\(\text{Cointerior angles sum to 180°, and} \)

\(113 + 57 = 170^{\circ} \neq 180^{\circ}\)

\(\therefore\ \text{Lines are not parallel.}\)

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\(\text{Cointerior angles sum to 180°, and} \)

\(113 + 57 = 170^{\circ} \neq 180^{\circ}\)

\(\therefore\ \text{Lines are not parallel.}\)