If the base of the parallelogram is 25 cm and the height is twice the base, what is its area in square centimeters?
平行四边形的底是25厘米，高是底的2倍，它的面积是多少平方厘米．
<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">25 * 50</gadget>
<output>1_250</output>

<result>1_250</result>