Question
DFK, EFJ and GFH are straight lines. Given that ∠l = ∠m = 46°, ∠n = 126°, ∠p = 105° and ∠q = 21°, find ∠r.
3 m

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DFK, EFJ and GFH are straight lines. Given that ∠l = ∠m = 46°, ∠n = 126°, ∠p = 105° and ∠q = 21°, find ∠r.