Question
In the figure, GHJ is an equilateral triangle, CDEF is a square and HDEJ is a straight line. ∠k = 120°. Find the sum of ∠l, ∠m and ∠n.
4 m

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In the figure, GHJ is an equilateral triangle, CDEF is a square and HDEJ is a straight line. ∠k = 120°. Find the sum of ∠l, ∠m and ∠n.