The base of a parallelogram is 4 decimeters and the height is 1.6 decimeters. What is its area?
一个平行四边形的底是4分米，高是1.6分米，它的面积是多少．
<gadget id="calculator">1.6 * 4</gadget>
<output>6.4</output>

<result>6.4</result>