If a cube with sides 8 cm long is cut into the largest cone, what is the radius of the base of the cone in cm?
把一个棱长是8厘米的正方体削成一个最大的圆锥体，这个圆锥体的底面半径是多少厘米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<result>4</result>