Thinking Inside the Box

Geometry Level 2

$R$ is a vertex of the face of a cube whose edges measure 2cm, while $Q$ is the center of the opposite face. Determine the length of $RQ$ .

2.50\text{ cm}

1.25\text{ cm}

\sqrt{5}\text{ cm}

\sqrt{6} \text{ cm}

2.25\text{ cm}