A triangular field has a base length of 90 meters and a height of 80 meters. Rapeseed is planted in this field, and the average amount of rapeseed per square meter is 100 kilograms. How many kilograms of rapeseed oil can be harvested in total?
一个三角形田，底长90米，高80米．在这块田种上油菜，平均每平方米收油菜籽100千克，一共可以收多少千克菜籽油？
<gadget id="calculator">80 / 2</gadget>
<output>40</output>

<gadget id="calculator">90 * 40 * 100</gadget>
<output>360_000</output>

<result>360_000</result>