A triangular steel plate has a base of 1.6 meters, a height of 0.8 meters, and a steel plate weighing 12.5 kilograms per square meter. How much does this steel plate weigh?
一块三角形钢板底是1.6米，高是0.8米，每平方米钢板重12.5千克．这块钢板重多少千克？
<gadget id="calculator">0.8 / 2</gadget>
<output>0.4</output>

<gadget id="calculator">1.6 * 0.4 * 12.5</gadget>
<output>8</output>

<result>8</result>