A cylinder has a lateral area of 141.3 square centimeters and a height of 5 centimeters. What is the radius of its base?
一个圆柱的侧面积是141.3平方厘米，高是5厘米，它的底面半径是多少？
<gadget id="calculator">141.3 / 5</gadget>
<output>28.26</output>

<gadget id="calculator">28.26 / 3.14 / 2</gadget>
<output>4.5</output>

<result>4.5</result>