A triangular flower bed is 30 meters long at the bottom and 20 meters high, with an average of 50 flowers per square meter, how many flowers can be produced in total.
一块三角形花圃底长30米，高20米，平均每平方米产鲜花50枝，一共可以产多少枝鲜花．
<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">30 * 10</gadget>
<output>300</output>

<gadget id="calculator">50 * 300</gadget>
<output>15_000</output>

<result>15_000</result>