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UKMT Grey Kangaroo, 2018

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

Valeriu draws a zig-zag line inside a rectangle, creating angles of $10°$ , $14°$ , $33°$ and $26°$ as shown. What is the size of the angle marked $\theta$ ?

(A) $11°$ (B) $12°$ (C) $16°$ (D) $17°$ (E) $33°$

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