The radius of the base of a cylinder is 5 cm and the height is 14 cm. What is its surface area in square centimeters (π takes 3.14)
一个圆柱的底面半径是5厘米高是14厘米，它的表面积是多少平方厘米(π取3.14)
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 2</gadget>
<output>157</output>

<gadget id="calculator">3.14 * 5 * 2 * 14</gadget>
<output>439.6</output>

<gadget id="calculator">157 + 439.6</gadget>
<output>596.6</output>

<result>596.6</result>