UKMT Pink Kangaroo, 2021

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

Five line segments are drawn inside a rectangle as shown. What is the sum of the six marked angles?

(A) $360^\circ$ (B) $720^\circ$ (C) $900^\circ$ (D) $1080^\circ$ (E) $1120^\circ$

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