Question
The figure shows 4 triangles. If ∠r is 57°, find the sum of ∠k + ∠j + ∠h + ∠v + ∠f.
2 m

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The figure shows 4 triangles. If ∠r is 57°, find the sum of ∠k + ∠j + ∠h + ∠v + ∠f.