6. LNO and NLM are alt. Interior angles.
7. OLN and MNL are alt. Interior angles
Both are def of alt interior angles
8. LNO = NLM. CPCT
WHAT IS PARALLELOGRAM?
A parallelogram is a straightforward quadrilateral with two sets of parallel sides in Euclidean geometry. In a parallelogram, the opposing or confronting sides are of equal length, and the opposing angles are of equal size.
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