Cut out the largest semicircle from a piece of rectangular paper, the length is 24 cm and the width is 10 cm. What is the circumference of the semicircle in cm?
在一张长方形的纸剪一个最大的半圆，长是24厘米，宽10厘米，半圆的周长是多少厘米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">3.14 * 5</gadget>
<output>15.7</output>

<gadget id="calculator">15.7 + 10</gadget>
<output>25.7</output>

<result>25.7</result>