CEMC Cayley, 2000

Geometry Difficulty 2.0 Junior Find the answer Canada

If $AD$ is a straight line segment and $E$ is a point on $AD$ , determine the measure of $\angle CED$ .

(A) $20^\circ$ (B) $12^\circ$ (C) $42^\circ$ (D) $30^\circ$ (E) $45^\circ$

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