triangle and a parallelogram have the same area, and the length of the base is also the same. It is known that the height of the parallelogram is 6 cm. What is the height of the triangle in cm?
一个三角形和一个平行四边形的面积相等，底边的长也相等，已知平行四边形的高是6厘米，三角形的高是多少厘米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 / (1/2)</gadget>
<output>12</output>

<result>12</result>