There is a square pond with a length of 6 meters on each side. Grandma walks along the pond and walks 2 times. How many meters did grandma walk in total?
有一个正方形的池塘，每边长6米，奶奶沿着池塘散步，走了2圈，奶奶一共走了多少米？
<gadget id="calculator">6 * 4 * 2</gadget>
<output>48</output>

<result>48</result>