The area of a parallelogram is 25cm**2, what is the area of a triangle with the same base and height in cm**2.
一个平行四边形的面积是25cm**2，与它等底等高的三角形的面积是多少cm**2．
<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>

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