What is the area in square centimeters of a triangle with the same base and height as a parallelogram with an area of 12 square centimeters?
与面积是12平方厘米的平行四边形等底等高的三角形的面积是多少平方厘米．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<result>6</result>