Use a piece of rectangular red paper to make a right-angled triangle flag. The paper is 1.2 meters long and 1.8 meters wide. The two right-angled sides of the right-angled flag are 2 decimeters and 3 decimeters. How many flags can you make?
用一张长方形红纸做成直角三角形的小旗，纸长1.2米，宽1.8米，直角小旗的两个直角边为2分米和3分米，做多能做多少面小旗？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">1.2 * 5 * 1.2 * 5 * 2</gadget>
<output>72</output>

<result>72</result>