If the area of a triangle is 1.25 square meters, what is the area of a parallelogram with the same base and height in square meters?
三角形的面积是1.25平方米，和它等底等高的平行四边形的面积是多少平方米．
<gadget id="calculator">1.25 * 2</gadget>
<output>2.5</output>

<result>2.5</result>