Use a compass to draw a circle with a diameter of 3 cm, what is the distance between its legs in cm
用圆规画一个直径是3厘米的圆，它的两脚叉开的距离是多少厘米
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>