Question
In the figure, PQR is an equilateral triangle, KLMN is a square and QLMR is a straight line. ∠s = 120°. Find the sum of ∠t, ∠u and ∠v.
4 m

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In the figure, PQR is an equilateral triangle, KLMN is a square and QLMR is a straight line. ∠s = 120°. Find the sum of ∠t, ∠u and ∠v.