Question
The figure consists of 3 identical triangles. CD is a straight line. If ∠p + ∠q = 108°, what is the sum of ∠n, ∠r, ∠s and ∠t?
2 m

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The figure consists of 3 identical triangles. CD is a straight line. If ∠p + ∠q = 108°, what is the sum of ∠n, ∠r, ∠s and ∠t?