Question
In the figure, MNSU, QPST and LNPR are three straight lines.  ∠f = 73° and ∠j = 50°. Find the value of ∠e + ∠g + ∠h + ∠i.
2 m

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In the figure, MNSU, QPST and LNPR are three straight lines.  ∠f = 73° and ∠j = 50°. Find the value of ∠e + ∠g + ∠h + ∠i.