If the area of a triangle is 3.25 square decimeters, what is the area of a parallelogram with the same base and height as it?
一个三角形的面积是3.25平方分米，和它等底等高的平行四边形的面积是多少平方分米．
<gadget id="calculator">3.25 * 2</gadget>
<output>6.5</output>

<result>6.5</result>