Question
GJN, HJM and KJL are straight lines. Given that ∠p = ∠q = 55°, ∠r = 123°, ∠s = 99° and ∠t = 18°, find ∠u.
3 m

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GJN, HJM and KJL are straight lines. Given that ∠p = ∠q = 55°, ∠r = 123°, ∠s = 99° and ∠t = 18°, find ∠u.