Question
The figure shows 4 triangles. If the sum of ∠v and ∠x is 109°, find the sum of ∠s + ∠t + ∠b + ∠h.
2 m

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The figure shows 4 triangles. If the sum of ∠v and ∠x is 109°, find the sum of ∠s + ∠t + ∠b + ∠h.