A triangular vegetable field has a base of 30 meters and a height of 15 meters. If 9 kilograms of vegetables are harvested per square meter, how many kilograms of vegetables can be harvested in this field?
一块三角形的菜地，它的底是30米，高是15米．如果每平方米收蔬菜9千克，这块地可以收蔬菜多少千克？
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">30 * (15/2) * 9</gadget>
<output>2_025</output>

<result>2_025</result>