Saw the largest square from a rectangular board with a length of 85 cm and a width of 55 cm. Find the area of this square.
在一块长85厘米、宽55厘米的长方形木板上锯下一个最大的正方形．求这个正方形的面积．
<gadget id="calculator">55 * 55</gadget>
<output>3_025</output>

<result>3_025</result>