Question
The figure consists of 3 identical triangles. YZ is a straight line. If ∠n is 77°, what is the sum of ∠p, ∠q, ∠r, ∠s and ∠t?
2 m

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The figure consists of 3 identical triangles. YZ is a straight line. If ∠n is 77°, what is the sum of ∠p, ∠q, ∠r, ∠s and ∠t?