The base of the triangle and the base of the parallelogram are both 8 meters, the area is equal, the height of the parallelogram is 4, what is the height of the triangle.
三角形的底和平行四边形的底都是8米，面积相等，平行四边形的高是4，三角形的高是多少．
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 * 4 * (1/4)</gadget>
<output>8</output>

<result>8</result>