UKMT Pink Kangaroo, 2018

Geometry Difficulty 1.0 Junior Find the answer United Kingdom

The lengths of two sides of a triangle are 5 cm and 2 cm. The length of the third side in cm is an odd integer. What is the length of the third side?

(A) $1\text{ cm}$ (B) $3\text{ cm}$ (C) $5\text{ cm}$ (D) $7\text{ cm}$ (E) $9\text{ cm}$

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