The minute hand of a clock face is 10 cm long. From 6:00 to 6:45, how many square centimeters does the minute hand sweep?
有个钟面分针长10厘米，从6时至6时45分，分针扫过的面积是多少平方厘米？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">45 / 60</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3.14 * 100 * (3/4)</gadget>
<output>235.5</output>

<result>235.5</result>