The circumference of a circle is 628 cm. If the circle is cut into two equal semicircles, what is the circumference of a semicircle in cm?
一个圆的周长是628厘米，把这个圆剪成两个相等的半圆，一个半圆的周长是多少厘米．
<gadget id="calculator">628 / 2</gadget>
<output>314</output>

<gadget id="calculator">628 / 3.14</gadget>
<output>200</output>

<gadget id="calculator">314 + 200</gadget>
<output>514</output>

<result>514</result>