A parallelogram and a triangle have the same base and height. It is known that the area of the parallelogram is 25 square centimeters. What is the area of the triangle in square centimeters?
一个平行四边形和一个三角形等底等高，已知平行四边形的面积是25平方厘米，那么三角形面积是多少平方厘米．
<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>

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