The base of a triangular iron sheet is 0.6m, and the height is 0.3m. What is the area d㎡ of a parallelogram iron sheet equal to its base and height?
一块三角形铁皮的底是0.6m，高是0.3m，做一块与它等底等高的平行四边形铁皮的面积是多少d㎡．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">0.6 * 10 * 0.3 * 5 * 2</gadget>
<output>18</output>

<result>18</result>