A triangular steel plate has a base of 5 meters and a height of 6 meters. The total weight of this steel plate is 180 kilograms. How many kilograms does it weigh on average per square meter?
一块三角形钢板，底是5米，高是6米，这块钢板共重180千克，平均每平方米重多少千克？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">180 / 15</gadget>
<output>12</output>

<result>12</result>