A triangle with an area of 225 square decimeters has a base of 3 meters, what is its height?
一个面积是225平方分米的三角形，它的底是3米，它的高是多少分米？
<gadget id="calculator">3 * 10</gadget>
<output>30</output>

<gadget id="calculator">2 / 30</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">225 * (1/15)</gadget>
<output>15</output>

<result>15</result>