If the area of a parallelogram is 25 square decimeters, what is the area of a triangle with the same base and height as it?
一个平行四边形的面积是25平方分米，与它等底等高的三角形的面积是多少平方分米．
<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>