Question
The figure, not drawn to scale, is made up of an equilateral triangle QRS and a trapezium TUWX. ∠XWU = 115°, ∠WUT = 66° and ∠UTX = 52°. Find the sum of ∠z, ∠a , and ∠b.
3 m

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The figure, not drawn to scale, is made up of an equilateral triangle QRS and a trapezium TUWX. ∠XWU = 115°, ∠WUT = 66° and ∠UTX = 52°. Find the sum of ∠z, ∠a , and ∠b.