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6. ∠STR and ∠UWV are complementary (their addition makes 90°)

∠QTS and ∠UWV are supplementary (their addition makes 180°)

7. ∠GLH and ∠HLJ are complementary (their addition makes 90°)

∠GLJ and ∠JLK are supplementary (their addition makes 180°)

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