The side view of a cylinder is a square. The radius of its base is 8 cm. What is its height in cm?
一个圆柱的侧面展开图是正方形，它的底面半径是8厘米，它的高是多少厘米．
<gadget id="calculator">3.14 * 2 * 8</gadget>
<output>50.24</output>

<result>50.24</result>