cylindrical milk powder can has a bottom radius of 7cm and a height of 25cm. There is a label paper on its side. What is the approximate area of the label paper in square centimeters? (neglected at joints)
一种圆柱形奶粉罐，底面半径是7cm，高25cm，它的侧面有一张商标纸，商标纸的面积大约是多少平方厘米？(接头处忽略不计)
<gadget id="calculator">3.14 * 7 * 2 * 25</gadget>
<output>1_099</output>

<result>1_099</result>