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UKMT Intermediate Mathematical Challenge, 2023

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

What is the area of this triangle?

(A) $6\text{ cm}^2$ (B) $7.5\text{ cm}^2$ (C) $8\text{ cm}^2$ (D) $10\text{ cm}^2$ (E) $12\text{ cm}^2$

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