Draw the largest circle in a rectangle with a length of 8 decimeters and a width of 6 decimeters. What is the radius of the circle in decimeters?
在一个长8分米，宽6分米的长方形中画一个最大的圆，圆的半径是多少分米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>