Question
In the figure, QRTU, SRZY, STVW, UVXY and QZXW are straight lines. Find the value of ∠f + ∠g + ∠h + ∠i.
3 m

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In the figure, QRTU, SRZY, STVW, UVXY and QZXW are straight lines. Find the value of ∠f + ∠g + ∠h + ∠i.