The area of a triangle is 30 square meters, its base is 8 meters, what is its height?
一个三角形的面积是30平方米，它的底是8米，高是多少米？
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">30 * (1/4)</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>