How do I solve it/ answer it?
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Answer:
The four angles created by the intersecting diagonals are all 90 degrees each.
<LKO, <NKO, <NMO, <LMO = x degrees
the other four angles created by the other diagonals are each 90-x degrees each.
<LKN,<LMN = 2x degrees each
<KLM,<KMN = 180-2x degrees each