piece of rectangular paper is 15 cm long and 8 cm wide. Cut it into the largest square. What is the area of this square in square centimeters?
一张长方形纸长15厘米，宽8厘米，把它剪成一个最大的正方形，这个正方形的面积是多少平方厘米．
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>