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UKMT Junior Mathematical Challenge, 2015

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

The diagram shows a shaded region inside a regular hexagon. The shaded region is divided into equilateral triangles. What fraction of the area of the hexagon is shaded?

(A) $\frac{3}{8}$ (B) $\frac{2}{5}$ (C) $\frac{3}{7}$ (D) $\frac{5}{12}$ (E) $\frac{1}{2}$

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