small triangular cloth flag has a base of 6 decimeters and a height of 4 decimeters. How many square meters of cloth are needed to make 100 such small cloth flags?
一面三角形小布旗，底是6分米，高是4分米，做100面这样的小布旗，最少需要多少平方米的布？
<gadget id="calculator">6 / 2 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">4 * (3/100) * 100</gadget>
<output>12</output>

<result>12</result>