The bottom length of a red scarf is 1 meter, and the height is 0.33 meters. How many square meters of red cloth are needed to make 200 red scarves?
一条红领巾的底长1米，高0.33米，做200条红领巾，需要红布多少平方米？
<gadget id="calculator">0.33 / 2</gadget>
<output>0.165</output>

<gadget id="calculator">1 * 0.165 * 200</gadget>
<output>33</output>

<result>33</result>