The area of a triangle is 2.5 square meters, and the area of a parallelogram with a height of 0.25 meters is equal to its area. How many meters should the base of this parallelogram be?
一个三角形的面积是2.5平方米，一个高是0.25米的平行四边形的面积和它的面积相等，这个平行四边形的底应是多少米．
<gadget id="calculator">2.5 / 0.25</gadget>
<output>10</output>

<result>10</result>