What is the surface area of a cylinder whose base radius is equal to its height and whose lateral area is 60 square centimeters?
一个圆柱的底面半径和高相等，侧面积是60平方厘米，表面积是多少．
<gadget id="calculator">1_500 / 157</gadget>
<output>1_500/157 = around 9.55414</output>

<gadget id="calculator">3.14 * (1_500/157)</gadget>
<output>30</output>

<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">60 + 60</gadget>
<output>120</output>

<result>120</result>