The volume of a cylinder is 62.8 cubic centimeters, the radius of the base is 2 centimeters, and what is the height in centimeters.
一个圆柱的体积是62.8立方厘米，底面半径是2厘米，高是多少厘米．
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">62.8 / 12.56</gadget>
<output>5</output>

<result>5</result>