A large clock has an hour hand 40 cm long. How many centimeters does the tip of the hour hand travel from 12:00 noon to 3:00 pm?
一只大钟，它的时针长40厘米．当从中午12时到下午3时，这根时针的尖端所走的路程是多少厘米？
<gadget id="calculator">3 / 360</gadget>
<output>1/120 = around 0.008333</output>

<gadget id="calculator">40 * 2 * 3.14 * 30 * (1/120)</gadget>
<output>62.8</output>

<result>62.8</result>