The distance between every two numbers on a clock face is about 5 cm. How many centimeters is the length of the circle of this clock face?
一个钟面上每两个数之间相隔约5厘米，这个钟面一圈长约多少厘米？
<gadget id="calculator">5 * 12</gadget>
<output>60</output>

<result>60</result>