Question
In the figure, MON, POQ, ROS and TOU are straight lines. Find ∠b + ∠s + ∠t + ∠v + ∠w + ∠y + ∠z + ∠a.
2 m

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In the figure, MON, POQ, ROS and TOU are straight lines. Find ∠b + ∠s + ∠t + ∠v + ∠w + ∠y + ∠z + ∠a.