A piece of triangular land with a base of 400 meters and a height of 100 meters has a total of 48,000 flowers and plants. How many trees are planted per hectare?
一块三角形土地，底是400米，高是100米，共种花草48000棵，平均每公顷种多少棵？
<gadget id="calculator">100 / 2 / 10_000</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">400 * (1/200)</gadget>
<output>2</output>

<gadget id="calculator">48_000 / 2</gadget>
<output>24_000</output>

<result>24_000</result>