The side length of a small square is 1.7 decimeters. If 4 such small squares are used to form a large square, what is the area of the large square?
一个小正方形的边长是1.7分米，如果用4个这样的小正方形拼成一个大正方形，大正方形的面积是多少？
<gadget id="calculator">1.7 * 2</gadget>
<output>3.4</output>

<gadget id="calculator">3.4 * 3.4</gadget>
<output>11.56</output>

<result>11.56</result>