Question
The figure shows 4 triangles. If the sum of ∠a and ∠z is 120° , find the sum of ∠w + ∠c + ∠g + ∠h.
2 m

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The figure shows 4 triangles. If the sum of ∠a and ∠z is 120° , find the sum of ∠w + ∠c + ∠g + ∠h.